Results

This is a volunteer-maintained analysis created by and for terminal emulator and TUI/CLI library developers.

We welcome productive contributions and corrections to improve the accuracy and completeness of these measurements.

Note

These test results are provided as-is and we do not guarantee their correctness. The scores and ratings presented here are objective measurements of Unicode and terminal feature support by analysis of automatic response, and should not be interpreted as an overall assessment of terminal emulator quality or a recommendation. Many factors beyond Unicode support contribute to terminal quality. Some terminals may optionally support features and modes not represented here. This data represents only automatic responses received when launched in their default configurations and packaged build options. Some languages and emoji tests may also pass ‘accidentally’!

General Tabulated Summary

Rank	Terminal Software	Software Version	OS System	Score	WIDE	NARROW	LANG	ZWJ	VS16	VS15	SRI	SFZ	RI	Features	Graphics	Resources
1	AbsoluteTelnet/SSH	14.21	Linux	100	100	100	100	100	100	100	100	100	100	100	Sixel, iTerm2, Kitty	N/A
2	contour	0.7.1…	Linux	99	100	100	100 †	100	100	100 †	100	100	100	94	Sixel, ReGIS, Kitty	51
3	kitty	0.48.2	Linux	98	100 †	100 †	100 †	100	100 †	100	100	100 †	100	89	Kitty	24
4	ghostty	1.3.1…	Linux	93	100	100	100	100	100	100	100	100	100	67	Kitty	47
5	foot	1.28.0	Linux	89	100 †	100 †	100 †	100	100	100	100 †	100 †	100	72	Sixel	97
6	Rio	0.5.27	Linux	78	92	100	100	100	100	89	0	0	100	67	Sixel, iTerm2, Kitty	51
7	Konsole	23.08.5	Linux	72	50	100	92	96	100	0	100	100	100	14	Sixel, iTerm2, Kitty	42
8	WezTerm	20260716…	Linux	71	94	100	88	100	50	0	0	100	100	56	Sixel, iTerm2, Kitty	26
9	WindowsTerminal	1.24.11321.0	Windows	67	92	100	98	100	100	0	0	0	100	39	Sixel	N/A
10	mintty	3.8.3	Windows	67	92	100	92	100	100	100	0	0	100	44	Sixel, ReGIS	N/A
11	tmux	3.4	Linux	66	67	100	92	81	98	0	100	100	100	14	Sixel ‡	38
12	iTerm2	3.7.2	Darwin	53	100	100	92	17	97	0	100	100	1	61	Sixel, iTerm2, Kitty	N/A
13	TeraTerm	5.6.0	Windows	47	92	99	90	96	50	0	0	0	99	25	none	N/A
14	Warp	v0.2026.08.26.17.59.stable_01	Linux	46	45	100	92	0	100	0	0	100	99	19	iTerm2, Kitty	34
15	XTerm	411	Linux	42	94	100	92	1	50	0	0	100	100	36	Sixel ‡, ReGIS	92
16	mlterm	3.9.4	Linux	37	45	100	85	0	50	0	0	100	99	33	Sixel, ReGIS, iTerm2	65
17	alacritty		Linux	37	94	99	93	1	50	0	0	100	100	31	none	68
18	urxvt	9.31…	Linux	35	94	100	92	1	50	0	0	100	100	22	none	100
19	zutty	0.16…	Linux	32	94	100	92	1	50	0	0	100	100	8	none	49
20	Zellij	4403	Linux	31	44	100	92	1	50	0	0	100	100	21	Sixel	38
21	Apple_Terminal	488	Darwin	31	94	98	90	0	50	0	0	100	99	11	none	N/A
22	st	0.9.2	Linux	31	94	100	92	1	50	0	0	100	100	6	none	87
23	Bobcat	0.9.9 (r5)	Linux	31	97	100	92	0	100	0	100	0	1	50	none	56
24	cool-retro-term	2.0.0beta2…	Linux	31	94	100	92	1	50	0	0	100	100	3	none	24
25	pterm	0.85…	Linux	30	94	100	92	1	50	0	0	100	100	0	none	78
26	GNOME Terminal	3.50.1 (VTE/8400)	Linux	29	44	100	92	1	50	0	0	100	100	36	none	21
27	Terminator	2.1.3 (VTE/8400)	Linux	29	44	100	92	1	50	0	0	100	100	36	none	12
28	XFCE Terminal	1.1.3 (VTE/8400)	Linux	29	44	100	92	1	50	0	0	100	100	36	none	12
29	Tabby	1.0.230	Linux	27	12	100	92	1	50	0	0	100	100	28	Sixel	0
30	xterm.js	6.1.0…	Linux	26	12	100	92	1	50	0	0	100	100	47	none	N/A
31	libvterm	0.3	Linux	24	100	97	90	0	50	0	100	100	0	34	none	46
32	Extraterm	0.81.4	Linux	23	39	100	0	0	100	0	0	100	99	3	iTerm2	20
33	GNU Screen	5.0.1	Linux	22	61	100	68	1	50	0	0	100	100	8	none	50
34	Hyper	3.4.1	Linux	19	12	100	92	1	50	0	0	100	100	11	none	N/A
35	weston-terminal	15.0.1…	Linux	16	61	100	0	0	100	0	0	100	99	0	none	N/A
36	QTerminal	2.2.1	Linux	10	61	0	92	1	50	0	0	100	100	19	none	50
37	securecrt	9.7.2	Windows	10	0	100	68	1	50	3	0	100	99	0	none	N/A
38	terminology	1.13.0	Linux	7	40	100	12	1	50	0	0	100	99	11	none	57
39	ConEmu	23.07.24	Windows	0	50	97	0	0	98	0	100	100	0	0	none	N/A

† This score is credited 100% by the Kitty Text Sizing protocol, which allows any application to programmatically set character widths, remediating width issues for complex languages, emoji, and other problematic codepoints. Only scores that measured below 100%, or were not measured at all, are credited and marked; unmarked scores were measured directly. Interpretation of VS15 is contested and excluded from the final score.

‡ tmux: Must be compiled with sixel support. Check support and enablement with command: (tmux show-options -g;tmux show-window-options)|grep -i sixel

‡ XTerm: Sixel support is enabled by CLI argument, E.g. xterm -rv -ti vt340.

Definitions:

• FINAL score: The overall terminal emulator quality score, calculated as the weighted average of all feature scores (WIDE, NARROW, LANG, ZWJ, VS16, SRI, SFZ, RI, DEC Modes, and RESOURCES), then scaled (normalized 0-100%) relative to all terminals tested. Higher scores indicate better overall Unicode and terminal feature support. DEC Modes and RESOURCES are normalized to 0-1 range before averaging. RESOURCES and graphics is weighted at 0.5 (half as powerful as other metrics), and standalone RI and Fitzpatrick are weighted at 0.3 to reduce its impact on the final score.

• WIDE score: Percentage of wide character codepoints correctly displayed for the latest Unicode version. Calculated as the total number of successful codepoints divided by total codepoints tested, scaled.

• NARROW score: Percentage of narrow character codepoints correctly displayed for the latest Unicode version. Calculated as the total number of successful codepoints divided by total codepoints tested, scaled.

• LANG score: Calculated using the geometric mean of success percentages across all international languages tested. This fairly accounts for partial support (e.g., 99%, 98%) without letting one low score dominate, scaled.

• ZWJ score: Percentage of emoji ZWJ (Zero-Width Joiner) sequences correctly displayed for the latest Unicode Emoji version. Calculated as the total number of successful sequences divided by total sequences tested, scaled.

• VS16 score: Determined by the number of Emoji using Variation Selector-16 supported as wide characters.

• VS15 score: Determined by the number of Emoji using Variation Selector-15 supported as narrow characters. Note: Interpretation of VS15 is contested (excluded from final score).

• SRI score: Percentage of standalone Regional Indicator symbols (U+1F1E6-U+1F1FF) correctly displayed as wide (2-cell) characters when not paired as flag sequences.

• SFZ score: Percentage of standalone Fitzpatrick skin tone modifiers (U+1F3FB-U+1F3FF) correctly displayed as wide (2-cell) characters when not combined with a base emoji.

• RI score: Percentage of Regional Indicator flag sequences (country and subdivision flags) correctly displayed as wide (2-cell) characters. Sourced from the Unicode emoji-test.txt specification.

• Mode 2027: DEC Mode 2027 (GRAPHEME_CLUSTERING) support. Shows ‘enabled’ if the mode is currently enabled, ‘may enable’ if the mode is supported but not enabled and can be changed to enabled, or ‘no’ if not supported. This mode enables grapheme clustering behavior in the terminal.

• Tofu: The font glyph coverage protocol the terminal answers, mintty (Font Glyph Coverage Enquiry, OSC 7771) or glyph (Glyph Protocol, APC 25a1), by which it may be asked whether its font has a glyph for a codepoint. Answering at all counts towards the FEAT score; which codepoints are covered does not, being a property of the installed font.

• DEC Modes: Determined by the number of DEC private modes that are changeable by the terminal, scaled.

• Resources: Composite CPU, RSS memory, and run duration score (0-100), where the global mean maps to 50 and the lightest/fastest terminal scores 100. Excluded from the final score, it cannot be measured for all terminals. Computed by averaging sub-scores for mean CPU%, mean RSS (MB), and total seconds, each individually scaled so the global mean = 50, min = 100, max = 0.

Terminal Features

This table shows notable terminal features for each terminal, matching the feature detection performed by ucs-detect.

Rank	Terminal	FEAT Score	Bracketed Paste (2004)	Synced Output (2026)	In-Band Resize (2048)	Focus Events (1004)	Mouse SGR (1006)	Graphemes (2027)	Bracketed Paste MIME (5522)	Kitty Keyboard	Graphics	XTGETTCAP	Text Size (OSC 66)	Tofu	Kitty Clipboard	OSC 52 Clipboard	Kitty Ptr (OSC 22)	Kitty Notif (OSC 99)	Color Report (OSC 10/11)	Truecolor	Identification
1	AbsoluteTelnet/SSH	100	yes	yes	yes	yes	yes	yes	yes	yes (Full)	Sixel, iTerm2, Kitty	yes (Full)	yes	mintty	yes	yes	yes	yes	yes	yes	yes
2	contour	94	yes	yes	yes	yes	yes	yes	yes	yes (Full)	Sixel, ReGIS, Kitty	yes (Full)	yes	no	yes	yes	yes	yes	yes	yes	yes
3	kitty	89	yes	yes	yes	yes	yes	no	yes	yes (Full)	Kitty	yes (Full)	yes	no	yes	yes	yes	yes	yes	yes	yes
4	foot	72	yes	yes	yes	yes	yes	yes	no	yes (Full)	Sixel	yes (Full)	yes	no	no	yes	no	no	yes	yes	yes
5	ghostty	67	yes	yes	yes	yes	yes	yes	no	yes (Full)	Kitty	yes (Full)	no	no	no	yes	no	no	yes	yes	yes
6	Rio	67	yes	yes	no	yes	yes	yes	no	yes (Full)	Sixel, iTerm2, Kitty	yes (Full)	no	glyph	no	yes	no	no	yes	yes	yes
7	iTerm2	61	yes	yes	yes	yes	yes	no	no	yes (Full)	Sixel, iTerm2, Kitty	yes (Full)	no	no	no	yes	no	no	yes	yes	yes
8	WezTerm	56	yes	yes	no	yes	yes	yes	no	no	Sixel, iTerm2, Kitty	yes (Full)	no	no	no	yes	no	no	yes	yes	yes
9	Bobcat	50	yes	yes	yes	yes	yes	no	no	no	none	yes (Full)	no	mintty	no	no	no	no	no	yes	yes
10	xterm.js	47	yes	yes	no	yes	yes	no	no	yes (Full)	none	no	no	no	no	no	no	yes	yes	yes	yes
11	mintty	44	yes	no	no	yes	yes	yes	no	no	Sixel, ReGIS	no	no	mintty	no	no	no	no	yes	yes	yes
12	WindowsTerminal	39	yes	yes	no	yes	yes	yes	no	no	Sixel	no	no	no	no	yes	no	no	yes	no	no
13	XTerm	36	yes	no	no	yes	yes	no	no	no	Sixel ‡, ReGIS	yes (Partial)	no	no	no	no	no	no	yes	yes	yes
14	GNOME Terminal	36	yes	no	no	yes	yes	no	no	no	none	yes (Partial)	no	no	no	no	no	no	yes	yes	yes
15	Terminator	36	yes	no	no	yes	yes	no	no	no	none	yes (Partial)	no	no	no	no	no	no	yes	yes	yes
16	XFCE Terminal	36	yes	no	no	yes	yes	no	no	no	none	yes (Partial)	no	no	no	no	no	no	yes	yes	yes
17	libvterm	34	yes	no	no	yes	yes	no	no	yes (Partial)	none	no	no	no	no	no	no	no	yes	yes	yes
18	mlterm	33	yes	no	no	yes	yes	no	no	no	Sixel, ReGIS, iTerm2	yes (Partial)	no	no	no	no	no	no	yes	yes	yes
19	alacritty	31	yes	yes	no	yes	yes	no	no	yes (Partial)	none	no	no	no	no	no	no	no	yes	yes	no
20	Tabby	28	yes	no	no	yes	yes	no	no	no	Sixel	no	no	no	no	no	no	no	yes	yes	yes
21	TeraTerm	25	yes	no	no	yes	yes	no	no	no	none	yes (Partial)	no	no	no	no	no	no	yes	no	no
22	urxvt	22	yes	no	no	yes	yes	no	no	no	none	no	no	no	no	no	no	no	yes	no	no
23	Zellij	21	no	no	no	no	no	no	no	yes (Partial)	Sixel	no	no	no	no	yes	no	no	yes	yes	yes
24	Warp	19	no	no	no	no	no	no	no	yes (Full)	iTerm2, Kitty	no	no	no	no	no	no	no	yes	yes	yes
25	QTerminal	19	yes	no	no	yes	yes	no	no	no	none	no	no	no	no	no	no	no	no	yes	no
26	Konsole	14	no	no	no	no	no	no	no	no	Sixel, iTerm2, Kitty	no	no	no	no	no	no	no	yes	yes	yes
27	tmux	14	no	no	no	no	no	no	no	no	Sixel ‡	no	no	no	no	no	no	no	yes	yes	yes
28	Apple_Terminal	11	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	yes	yes
29	Hyper	11	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	yes	yes
30	terminology	11	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	no	yes
31	zutty	8	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	yes	no
32	GNU Screen	8	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	yes	no
33	st	6	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	yes	no	no
34	cool-retro-term	3	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	no	yes	no
35	Extraterm	3	no	no	no	no	no	no	no	no	iTerm2	no	no	no	no	no	no	no	no	yes	no
36	pterm	0	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	no	no	no
37	weston-terminal	0	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	no	no	no
38	securecrt	0	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	no	no	no
39	ConEmu	0	no	no	no	no	no	no	no	no	none	no	no	no	no	no	no	no	no	no	no

Truecolor Detection

This table shows which methods can be used to detect 24-bit truecolor support for each terminal emulator. no cells are yellow when only COLORTERM detects support (COLORTERM environment variable is not forwarded over SSH without SendEnv / AcceptEnv configuration), grey when at least one other method succeeds, and red when no method can detect Truecolor support.

Terminal	XTGETTCAP (RGB)	DECRQSS	COLORTERM
AbsoluteTelnet/SSH	yes	yes	yes
contour	yes	yes	yes
kitty	no	yes	yes
ghostty	yes	yes	yes
foot	yes	yes	yes
Rio	yes	no	yes
Konsole	no	no	yes
WezTerm	yes	no	yes
WindowsTerminal	no	no	no
mintty	no	yes	no
tmux	no	no	yes
iTerm2	yes	no	yes
TeraTerm	no	no	no
Warp	no	no	yes
XTerm	yes	yes	no
mlterm	no	no	yes
alacritty	no	no	yes
urxvt	no	no	no
zutty	no	no	yes
Zellij	no	no	yes
Apple_Terminal	no	no	yes
st	no	no	no
Bobcat	yes	yes	yes
cool-retro-term	no	no	yes
pterm	no	no	no
GNOME Terminal	yes	yes	yes
Terminator	yes	yes	yes
XFCE Terminal	yes	yes	yes
Tabby	no	no	yes
xterm.js	no	no	yes
libvterm	no	yes	yes
Extraterm	no	no	yes
GNU Screen	no	no	yes
Hyper	no	no	yes
weston-terminal	no	no	no
QTerminal	no	no	yes
securecrt	no	no	no
terminology	no	no	no
ConEmu	no	no	no

OSC 52 Clipboard Detection

This table shows which methods can be used to detect OSC 52 clipboard support for each terminal emulator. DA1 extension 52 is the mechanism defined by the vt-extensions spec; XTGETTCAP Ms is an alternative capability query that may work on terminals not advertising the DA1 extension.

Terminal	DA1 ext 52	XTGETTCAP Ms
AbsoluteTelnet/SSH	yes	yes
contour	yes	no
kitty	yes	yes
ghostty	yes	yes
foot	yes	yes
Rio	yes	yes
Konsole	no	no
WezTerm	yes	yes
WindowsTerminal	yes	no
mintty	no	no
tmux	no	no
iTerm2	yes	yes
TeraTerm	no	no
Warp	no	no
XTerm	no	no
mlterm	no	no
alacritty	no	no
urxvt	no	no
zutty	no	no
Zellij	yes	no
Apple_Terminal	no	no
st	no	no
Bobcat	no	no
cool-retro-term	no	no
pterm	no	no
GNOME Terminal	no	no
Terminator	no	no
XFCE Terminal	no	no
Tabby	no	no
xterm.js	no	no
libvterm	no	no
Extraterm	no	no
GNU Screen	no	no
Hyper	no	no
weston-terminal	no	no
QTerminal	no	no
securecrt	no	no
terminology	no	no
ConEmu	no	no

Device Attributes

This table shows the Device Attributes (CSI c) DEC service class and per-extension feature support for each terminal.

Terminal	Service Class	132-column mode	Printer port	ReGIS graphics	Sixel graphics	Selective erase	Soft character sets (DRCS)	User-defined keys (UDK)	National replacement charsets	Extension 11	Advanced video option	Technical character set	Terminal state reports (16-bit)	User windows	Horizontal scrolling	ANSI color	Greek	Turkish	Rectangular area operations	Text locator (mouse)	ANSI text terminal (Level 3)	ISO Latin-2 character set	OSC 52 clipboard	Pixel geometry
AbsoluteTelnet/SSH	VT520	1	2	no	4	6	7	8	9	no	no	15	no	no	21	22	no	no	28	no	no	no	52	no
contour	VT525	1	no	3	4	no	7	no	9	no	no	no	no	18	21	22	no	no	no	29	no	no	52	314
kitty	VT520	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	52	no
ghostty	VT520	no	no	no	no	no	no	no	no	no	no	no	no	no	no	22	no	no	no	no	no	no	52	no
foot	VT520	no	no	no	4	no	no	no	no	no	no	no	no	no	no	22	no	no	28	no	no	no	52	no
Rio	VT520	no	no	no	4	6	no	no	no	no	no	no	no	no	no	22	no	no	no	no	no	no	52	no
Konsole	VT520	1	no	no	4	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
WezTerm	VT525	no	no	no	4	6	no	no	no	no	no	no	no	18	no	22	no	no	no	no	no	no	52	no
WindowsTerminal	VT510	no	no	no	4	6	7	no	no	no	14	no	no	no	21	22	23	24	28	no	32	42	52	no
mintty	VT420	1	2	3	4	6	no	no	9	11	no	15	no	no	21	22	no	no	28	29	no	no	no	no
tmux	VT100	no	2	no	4	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
iTerm2	VT420	1	2	no	4	6	no	no	no	no	no	no	17	18	21	22	no	no	no	no	no	no	52	no
TeraTerm	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Warp	VT520	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
XTerm	VT320	1	2	3	4	6	no	no	9	no	no	15	17	no	no	22	no	no	28	no	no	no	no	no
mlterm	VT320	1	2	3	4	6	7	no	no	no	no	15	no	18	no	22	no	no	no	29	no	no	no	no
alacritty	Level 4 (no VT class)	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
urxvt	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
zutty	VT420	1	no	no	no	no	no	no	9	no	no	15	no	no	21	22	no	no	no	no	no	no	no	no
Zellij	VT520	no	no	no	4	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	52	no
Apple_Terminal	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
st	Level 4 (no VT class)	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Bobcat	VT420	1	no	no	no	6	no	8	9	no	no	15	17	no	21	22	no	no	28	no	no	no	no	no
cool-retro-term	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
pterm	Level 4 (no VT class)	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
GNOME Terminal	VT510	1	no	no	no	no	no	no	no	no	no	no	no	no	21	22	no	no	28	no	no	no	no	no
Terminator	VT510	1	no	no	no	no	no	no	no	no	no	no	no	no	21	22	no	no	28	no	no	no	no	no
XFCE Terminal	VT510	1	no	no	no	no	no	no	no	no	no	no	no	no	21	22	no	no	28	no	no	no	no	no
Tabby	VT520	no	no	no	4	no	no	no	9	no	no	no	no	no	no	22	no	no	no	no	no	no	no	no
xterm.js	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
libvterm	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Extraterm	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
GNU Screen	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
Hyper	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
weston-terminal	Level 4 (no VT class)	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
QTerminal	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
securecrt	VT520	1	2	no	no	6	7	8	9	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no
terminology	VT420	1	no	no	no	no	no	no	9	no	no	15	no	18	21	22	no	no	no	no	no	no	no	no
ConEmu	VT100	no	2	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no	no

Terminal Identification

This table shows which methods can be used to identify the terminal software name and version. XTVERSION, XTGETTCAP TN, and ENQ are active escape sequence queries (work over SSH). TERM_PROGRAM and TERM are environment variables; TERM_PROGRAM is not forwarded over SSH without SendEnv / AcceptEnv configuration, while TERM is (though some protocols such as Serial do not forward TERM).

Terminal	XTVERSION	XTGETTCAP TN	ENQ	TERM_PROGRAM	TERM
AbsoluteTelnet/SSH	yes	no	no	yes	no
contour	yes	no	no	yes	yes
kitty	yes	yes	no	no	yes
ghostty	yes	yes	no	yes	yes
foot	yes	yes	no	no	yes
Rio	yes	yes	no	yes	yes
Konsole	yes	no	no	no	no
WezTerm	yes	yes	no	yes	no
WindowsTerminal	no	no	no	no	no
mintty	yes	no	no	yes	no
tmux	yes	no	no	yes	no
iTerm2	yes	no	no	yes	no
TeraTerm	no	no	no	no	no
Warp	yes	no	no	yes	no
XTerm	yes	no	no	no	no
mlterm	yes	yes	no	no	no
alacritty	no	no	no	no	yes
urxvt	no	no	yes	no	yes
zutty	no	no	no	no	no
Zellij	yes	no	no	no	no
Apple_Terminal	no	no	no	yes	no
st	no	no	no	no	yes
Bobcat	yes	no	no	no	no
cool-retro-term	no	no	no	no	no
pterm	no	no	yes	no	no
GNOME Terminal	yes	no	no	no	no
Terminator	yes	no	no	no	no
XFCE Terminal	yes	no	no	no	no
Tabby	no	no	no	yes	no
xterm.js	yes	no	no	yes	no
libvterm	yes	no	no	no	no
Extraterm	no	no	yes	no	no
GNU Screen	no	no	no	no	yes
Hyper	no	no	no	yes	no
weston-terminal	no	no	no	no	no
QTerminal	no	no	no	no	no
securecrt	no	no	no	no	no
terminology	yes	no	no	yes	no
ConEmu	no	no	no	no	no

• Identifiable by XTVERSION (22 of 39): AbsoluteTelnet/SSH, Bobcat, GNOME Terminal, Konsole, Rio, Terminator, Warp, WezTerm, XFCE Terminal, XTerm, Zellij, contour, foot, ghostty, iTerm2, kitty, libvterm, mintty, mlterm, terminology, tmux, xterm.js (active query, works over SSH).

• Not identifiable (8 of 39): ConEmu, QTerminal, TeraTerm, WindowsTerminal, cool-retro-term, securecrt, weston-terminal, zutty

• Identifiable by ENQ only (3 of 39): Extraterm, pterm, urxvt (active query, works over SSH).

• Identifiable by TERM_PROGRAM only (3 of 39): Apple_Terminal, Hyper, Tabby (environment variable, not forwarded over SSH).

• Identifiable by TERM only (3 of 39): GNU Screen, alacritty, st (environment variable, forwarded over SSH).

Terminal Capabilities (XTGETTCAP)

• No Support (56.4%): ConEmu, Extraterm, GNU Screen, Hyper, Konsole, QTerminal, Tabby, Warp, WindowsTerminal, Zellij, alacritty, libvterm, mintty, pterm, securecrt, st, terminology, tmux, urxvt, weston-terminal, xterm.js, zutty

• Full XTGETTCAP capability support (23.1%): AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty. A full terminfo(5) database can be reconstructed from XTGETTCAP queries using ttyscan. A preferred TERM from TN, and COLORTERM=truecolor from RGB may be derived.

• Partial XTGETTCAP capability support (15.4%): GNOME Terminal, TeraTerm, Terminator, XFCE Terminal, XTerm, mlterm. A preferred TERM from TN, and COLORTERM=truecolor from RGB may be derived.

• Non-compliant (5.1%): Apple_Terminal, cool-retro-term – failed to parse DCS queries, displaying raw sequence output.

This table shows XTGETTCAP terminfo capability values reported by each terminal. Terminals are grouped by shared values for each capability.

Capability	Description	Terminals and Values
TN	Terminal name	WezTerm: WezTerm AbsoluteTelnet/SSH, Bobcat, GNOME Terminal, Terminator, XFCE Terminal, contour, iTerm2: xterm-256color ghostty: xterm-ghostty kitty: xterm-kitty foot: foot mlterm: mlterm Rio: rio XTerm: xterm
colors	Max colors on screen	AbsoluteTelnet/SSH, Bobcat, GNOME Terminal, Rio, TeraTerm, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: 256
RGB	Bits per color channel (8 = 24-bit truecolor)	AbsoluteTelnet/SSH, Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, foot, ghostty, iTerm2: 8 Rio, WezTerm, contour: 8/8/8
AX	Supports default colors	iTerm2: 1
BD	Enter bold mode (kitty)	Rio, foot, ghostty, kitty: \E[?2004l
BE	Exit bold mode (kitty)	Rio, foot, ghostty, kitty: \E[?2004h
Cr	Set cursor color	foot: \E]112\E\ Rio, WezTerm, iTerm2, kitty: \E]112\a
Cs	Reset cursor color	contour, foot: \E]12;%p1%s\E\ Rio, WezTerm, iTerm2, kitty: \E]12;%p1%s\a
E3	Erase scrollback	Rio, contour, foot, ghostty, iTerm2: \E[3J
Ms	Clipboard set	foot, kitty: \E]52;%p1%s;%p2%s\E\ AbsoluteTelnet/SSH, Rio, WezTerm, ghostty, iTerm2: \E]52;%p1%s;%p2%s\a
PE	Presentation end (kitty)	Rio, foot, ghostty, kitty: \E[201~
PS	Presentation start (kitty)	Rio, foot, ghostty, kitty: \E[200~
RV	Enter reverse mode (kitty)	foot, ghostty, kitty: \E[>c
Rect	Rectangle operations	foot: \E[%p1%d;%p2%d;%p3%d;%p4%d;%p5%d$x
Rmol	Reset overline mode	contour: \E[55m
Se	Reset underline style	contour, foot: \E[ q AbsoluteTelnet/SSH, Rio: \E[0 q kitty: \E[0\sq WezTerm, ghostty, iTerm2: \E[2 q
Setulc	Set underline color	contour, kitty: \E[58:2:%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m AbsoluteTelnet/SSH: \E[58:2::%p1%d:%p2%d:%p3%dm WezTerm, foot, ghostty: \E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m
Smol	Set overline mode	WezTerm, contour: \E[53m
Smulx	Styled underline	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, kitty: \E[4:%p1%dm
Ss	Set underline style	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2: \E[%p1%d q kitty: \E[%p1%d\sq
Sync	Synchronized output	Rio, kitty: \EP=%p1%ds\E\ foot, ghostty: \E[?2026%?%p1%{1}%-%tl%eh%; WezTerm, contour: \E[?2026%?%p1%{1}%-%tl%eh
TS	Terminal state query	foot: \E]2;
Tc	Truecolor (24-bit RGB)	WezTerm: 1
XM	Enter marks mode (kitty)	WezTerm, foot, ghostty: \E[?1006;1000%?%p1%{1}%=%th%el%;
XR	Enter reset mode (kitty)	foot, ghostty, kitty: \E[>0q
XT	Xterm extensions	iTerm2: 1
acsc	Alternate character set	ghostty, kitty: ++\,\,--..00\\`\\`aaffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~ Rio, WezTerm, contour, foot, iTerm2: \\`\\`aaffggiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz{{||}}~~
am	Auto right margin	WezTerm, iTerm2: 1
bce	Background color erase	WezTerm, iTerm2: 1
bel	Bell	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \a
blink	Enter blink mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, foot, ghostty, iTerm2, kitty: \E[5m
bold	Enter bold mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[1m
bw	Auto left margin	iTerm2: 0
ccc	Can redefine colors	WezTerm, iTerm2: 1
civis	Hide cursor	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[?25l
clear	Clear screen	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[H\E[2J
cnorm	Normal cursor	kitty: \E[?12h\E[?25h AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2: \E[?12l\E[?25h Bobcat: \E[?25h
cols	Columns	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: 80
cr	Carriage return	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \r
csr	Change scroll region	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%i%p1%d;%p2%dr
cub	Cursor left n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dD
cub1	Cursor left	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \b
cud	Cursor down n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dB
cud1	Cursor down	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \n
cuf	Cursor right n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dC
cuf1	Cursor right	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[C
cup	Cursor address	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%i%p1%d;%p2%dH
cuu	Cursor up n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dA
cuu1	Cursor up	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[A
cvvis	Very visible cursor	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[?12;25h Bobcat: \E[?25h
da	Memory above	iTerm2: 0
db	Memory below	iTerm2: 0
dch	Delete n characters	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dP
dch1	Delete character	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[P
dim	Enter dim mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[2m
dl	Delete n lines	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dM
dl1	Delete line	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[M
dsl	Disable status line	contour: \E[$~ WezTerm, foot, kitty: \E]2;\E\ Rio, ghostty: \E]2;\a
ech	Erase characters	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dX
ed	Clear to end of screen	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[J
el	Clear to end of line	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[K
el1	Clear to start of line	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[1K
eslok	Status line escape OK	iTerm2: 0
fd	Enter font mode (kitty)	foot, ghostty, kitty: \E[?1004l
fe	Exit font mode (kitty)	foot, ghostty, kitty: \E[?1004h
flash	Flash screen	AbsoluteTelnet/SSH, Rio, WezTerm, contour, ghostty, iTerm2, kitty: \E[?5h$<100/>\E[?5l foot: \E]555\E\
fsl	From status line	contour: \E[$} WezTerm, foot: \E\ Rio, ghostty, kitty: \a
home	Cursor home	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[H
hpa	Horizontal position	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%i%p1%dG Bobcat: \E[%i%p1%d`
hs	Has status line	iTerm2: 0 WezTerm: 1
ht	Horizontal tab	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \t
hts	Set tab stop	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EH
ich	Insert n characters	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%d@
ich1	Insert character	ghostty: \E[@
il	Insert n lines	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dL
il1	Insert line	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[L
ind	Scroll forward	Bobcat: \ED AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \n
indn	Scroll forward n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dS
initc	Initialize color	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E]4;%p1%d;rgb:%p2%{255}%*%{1000}%/%2.2X/%p3%{255}%*%{1000}%/%2.2X/%p4%{255}%*%{1000}%/%2.2X\E\
invis	Invisible cursor	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2: \E[8m
is2	Init 2 string	foot: \E[!p\E[4l\E> Rio, WezTerm, iTerm2: \E[!p\E[?3;4l\E[4l\E>
it	Init tabs	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: 8
kDC	Shifted delete-char key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[3;2~ GNOME Terminal, Terminator, XFCE Terminal: \E[3~
kDC3	Alt delete-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[3;2~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[3;3~
kDC4	Alt-Shift delete-char key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[3;4~ GNOME Terminal, Terminator, XFCE Terminal: \E[3;5~
kDC5	Ctrl delete-char key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[3;5~ GNOME Terminal, Terminator, XFCE Terminal: \E[3;6~
kDC6	Ctrl-Shift delete-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[3;5~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[3;6~
kDC7	Ctrl-Alt delete-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[3;6~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[3;7~
kDN	Shifted down-arrow key	GNOME Terminal, Rio, Terminator, XFCE Terminal, contour, foot, ghostty, iTerm2, kitty: \E[1;2B
kDN3	Alt down-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2B Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3B
kDN4	Alt-Shift down-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4B GNOME Terminal, Terminator, XFCE Terminal: \E[1;5B
kDN5	Ctrl down-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5B GNOME Terminal, Terminator, XFCE Terminal: \E[1;6B
kDN6	Ctrl-Shift down-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5B Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6B
kDN7	Ctrl-Alt down-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6B Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7B
kEND	Shifted end key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2F
kEND3	Alt end key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2F Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3F
kEND4	Alt-Shift end key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4F GNOME Terminal, Terminator, XFCE Terminal: \E[1;5F
kEND5	Ctrl end key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5F GNOME Terminal, Terminator, XFCE Terminal: \E[1;6F
kEND6	Ctrl-Shift end key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5F Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6F
kEND7	Ctrl-Alt end key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6F Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7F
kHOM	Shifted home key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2H
kHOM3	Alt home key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2H Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3H
kHOM4	Alt-Shift home key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4H GNOME Terminal, Terminator, XFCE Terminal: \E[1;5H
kHOM5	Ctrl home key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5H GNOME Terminal, Terminator, XFCE Terminal: \E[1;6H
kHOM6	Ctrl-Shift home key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5H Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6H
kHOM7	Ctrl-Alt home key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6H Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7H
kIC	Shifted insert-char key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[2;2~ GNOME Terminal, Terminator, XFCE Terminal: \E[2~
kIC3	Alt insert-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[2;2~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[2;3~
kIC4	Alt-Shift insert-char key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[2;4~ GNOME Terminal, Terminator, XFCE Terminal: \E[2;5~
kIC5	Ctrl insert-char key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[2;5~ GNOME Terminal, Terminator, XFCE Terminal: \E[2;6~
kIC6	Ctrl-Shift insert-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[2;5~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[2;6~
kIC7	Ctrl-Alt insert-char key	GNOME Terminal, Terminator, XFCE Terminal: \E[2;6~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[2;7~
kLFT	Shifted left-arrow key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2D
kLFT3	Alt left-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2D Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3D
kLFT4	Alt-Shift left-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4D GNOME Terminal, Terminator, XFCE Terminal: \E[1;5D
kLFT5	Ctrl left-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5D GNOME Terminal, Terminator, XFCE Terminal: \E[1;6D
kLFT6	Ctrl-Shift left-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5D Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6D
kLFT7	Ctrl-Alt left-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6D Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7D
kNXT	Shifted next-page key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[6;2~
kNXT3	Alt next-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[6;2~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[6;3~
kNXT4	Alt-Shift next-page key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[6;4~ GNOME Terminal, Terminator, XFCE Terminal: \E[6;5~
kNXT5	Ctrl next-page key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[6;5~ GNOME Terminal, Terminator, XFCE Terminal: \E[6;6~
kNXT6	Ctrl-Shift next-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[6;5~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[6;6~
kNXT7	Ctrl-Alt next-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[6;6~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[6;7~
kPRV	Shifted previous-page key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[5;2~
kPRV3	Alt previous-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[5;2~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[5;3~
kPRV4	Alt-Shift previous-page key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[5;4~ GNOME Terminal, Terminator, XFCE Terminal: \E[5;5~
kPRV5	Ctrl previous-page key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[5;5~ GNOME Terminal, Terminator, XFCE Terminal: \E[5;6~
kPRV6	Ctrl-Shift previous-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[5;5~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[5;6~
kPRV7	Ctrl-Alt previous-page key	GNOME Terminal, Terminator, XFCE Terminal: \E[5;6~ Rio, contour, foot, ghostty, iTerm2, kitty: \E[5;7~
kRIT	Shifted right-arrow key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2C
kRIT3	Alt right-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2C Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3C
kRIT4	Alt-Shift right-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4C GNOME Terminal, Terminator, XFCE Terminal: \E[1;5C
kRIT5	Ctrl right-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5C GNOME Terminal, Terminator, XFCE Terminal: \E[1;6C
kRIT6	Ctrl-Shift right-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5C Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6C
kRIT7	Ctrl-Alt right-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6C Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7C
kUP	Shifted up-arrow key	GNOME Terminal, Rio, Terminator, XFCE Terminal, contour, foot, ghostty, iTerm2, kitty: \E[1;2A
kUP3	Alt up-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;2A Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;3A
kUP4	Alt-Shift up-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;4A GNOME Terminal, Terminator, XFCE Terminal: \E[1;5A
kUP5	Ctrl up-arrow key	Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;5A GNOME Terminal, Terminator, XFCE Terminal: \E[1;6A
kUP6	Ctrl-Shift up-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;5A Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;6A
kUP7	Ctrl-Alt up-arrow key	GNOME Terminal, Terminator, XFCE Terminal: \E[1;6A Rio, contour, foot, ghostty, iTerm2, kitty: \E[1;7A
ka1	Keypad upper left	GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[H
ka3	Keypad upper right	GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[5~
kb2	Keypad center	Rio, WezTerm, iTerm2: \EOE
kbs	Backspace key	XTerm, iTerm2, mlterm: \b Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, contour, foot, ghostty, kitty: 
kc1	Keypad lower left	GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[F
kc3	Keypad lower right	GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[6~
kcbt	Back-tab key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[Z
kcub1	Left arrow key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOD Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[D
kcud1	Down arrow key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOB Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[B
kcuf1	Right arrow key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOC Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[C
kcuu1	Up arrow key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOA Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[A
kdch1	Delete character key	Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[3~
kend	End key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOF Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[F
kent	Enter/send key	Rio, WezTerm, ghostty, iTerm2: \EOM XTerm: \r
kf1	Function key F1	Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \EOP
kf10	Function key F10	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[21~
kf11	Function key F11	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[23~
kf12	Function key F12	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[24~
kf2	Function key F2	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \EOQ
kf3	Function key F3	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \EOR
kf4	Function key F4	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \EOS
kf5	Function key F5	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[15~
kf6	Function key F6	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[17~
kf7	Function key F7	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[18~
kf8	Function key F8	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[19~
kf9	Function key F9	Bobcat, GNOME Terminal, Rio, Terminator, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[20~
khome	Home key	Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EOH Bobcat, GNOME Terminal, Terminator, XFCE Terminal, XTerm, mlterm: \E[H
kich1	Insert character key	Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[2~
kind	Scroll-down key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2B
kitty-query-allow_hyperlinks	hyperlink support	kitty: yes
kitty-query-background	background color	kitty: #000000
kitty-query-background_opacity	background opacity	kitty: 1
kitty-query-bold_font	bold font	kitty: FreeMonoBold
kitty-query-bold_italic_font	bold-italic font	kitty: FreeMonoBoldOblique
kitty-query-clipboard_control	clipboard control	kitty: write-clipboard write-primary read-clipboard-ask read-primary-ask
kitty-query-dpi_x	DPI X	kitty: 96
kitty-query-dpi_y	DPI Y	kitty: 96
kitty-query-font_family	font family	kitty: FreeMono
kitty-query-font_size	font size	kitty: 11
kitty-query-foreground	foreground color	kitty: #dddddd
kitty-query-italic_font	italic font	kitty: FreeMonoOblique
kitty-query-name	terminal name	kitty: kitty
kitty-query-os_name	OS name	kitty: linux
kitty-query-version	version	kitty: 0.48.2
km	Has meta key	WezTerm, iTerm2: 1
kmous	Mouse key	WezTerm, foot, ghostty: \E[< Rio, contour, iTerm2, kitty: \E[M
knp	Next page key	Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[6~
kpp	Previous page key	Bobcat, GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[5~
kri	Scroll-up key	GNOME Terminal, Rio, Terminator, WezTerm, XFCE Terminal, XTerm, contour, foot, ghostty, iTerm2, kitty, mlterm: \E[1;2A
kxIN	Keyboard in (kitty)	Rio, foot, ghostty, kitty: \E[I
kxOUT	Keyboard out (kitty)	Rio, foot, ghostty, kitty: \E[O
lines	Lines	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: 24
mc5i	Will not echo input	WezTerm, iTerm2: 1
mir	Move in insert mode	WezTerm, iTerm2: 1
msgr	Move in standout mode	WezTerm, iTerm2: 1
nel	Newline	AbsoluteTelnet/SSH, Bobcat, foot: \EE
npc	No pad character	WezTerm, iTerm2: 1
oc	Original colors	contour, foot: \E]104\E\ AbsoluteTelnet/SSH, Rio, WezTerm, ghostty, kitty: \E]104\a
op	Original pair	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[39;49m
pairs	Max color pairs	Bobcat, Rio, WezTerm, ghostty, iTerm2, kitty: 32767 contour, foot: 65536
query-os-name	OS name query	foot, kitty: Linux
rc	Restore cursor	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E8
rep	Repeat character	Rio, WezTerm, contour, foot, ghostty, kitty: %p1%c\E[%p2%{1}%-%db AbsoluteTelnet/SSH: \E[%p1%db
rev	Enter reverse mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[7m
ri	Reverse index	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \EM
rin	Scroll reverse n	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%p1%dT
ritm	Exit italics mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[23m
rmacs	Exit alternate charset mode	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E(B
rmam	Disable line wrap	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[?7l
rmcup	Exit alt screen	Rio, WezTerm, foot: \E[?1049l\E[23;0;0t AbsoluteTelnet/SSH, Bobcat, contour, ghostty, iTerm2, kitty: \E[?1049l
rmir	Exit insert mode	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[4l
rmkx	Keypad local mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, foot, ghostty, iTerm2: \E[?1l\E> contour, kitty: \E[?1l
rmm	Reset meta mode	Rio, WezTerm, iTerm2: \E[?1034l foot: \E[?1036h\E[?1034l
rmso	Exit standout mode	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[27m
rmul	Exit underline mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[24m
rs1	Reset string 1	contour, ghostty, kitty: \E]\E\\Ec Rio, WezTerm: \Ec\E]104\a AbsoluteTelnet/SSH, Bobcat, foot, iTerm2: \Ec
rs2	Reset string 2	foot: \E[!p\E[4l\E> Rio, WezTerm, iTerm2: \E[!p\E[?3;4l\E[4l\E> AbsoluteTelnet/SSH, Bobcat: \E[!p
rv	Exit reverse mode (kitty)	foot: \E\[>1;[0-9][0-9][0-9][0-9][0-9][0-9];0c ghostty: \E\[[0-9]+;[0-9]+;[0-9]+c
sc	Save cursor	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E7
setab	Set background color	foot: \E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48:5:%p1%d%;m Bobcat, Rio, WezTerm, contour, ghostty, iTerm2, kitty: \E[%?%p1%{8}%<%t4%p1%d%e%p1%{16}%<%t10%p1%{8}%-%d%e48;5;%p1%d%;m AbsoluteTelnet/SSH: \E[48;5;%p1%dm
setaf	Set foreground color	foot: \E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38:5:%p1%d%;m Bobcat, Rio, WezTerm, contour, ghostty, iTerm2, kitty: \E[%?%p1%{8}%<%t3%p1%d%e%p1%{16}%<%t9%p1%{8}%-%d%e38;5;%p1%d%;m AbsoluteTelnet/SSH: \E[38;5;%p1%dm
setal	Set ANSI label	foot: \E[58:2::%p1%{65536}%/%d:%p1%{256}%/%{255}%&%d:%p1%{255}%&%d%;m
setrgbb	Set RGB background	contour, ghostty, kitty: \E[48:2:%p1%d:%p2%d:%p3%dm foot: \E[48:2::%p1%d:%p2%d:%p3%dm AbsoluteTelnet/SSH: \E[48;2;%p1%d;%p2%d;%p3%dm
setrgbf	Set RGB foreground	contour, ghostty, kitty: \E[38:2:%p1%d:%p2%d:%p3%dm foot: \E[38:2::%p1%d:%p2%d:%p3%dm AbsoluteTelnet/SSH: \E[38;2;%p1%d;%p2%d;%p3%dm
sgr	Set attributes	kitty: %?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;%?%p5%t;2%;m contour: %?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m Rio, WezTerm, foot, ghostty, iTerm2: %?%p9%t\E(0%e\E(B%;\E[0%?%p6%t;1%;%?%p5%t;2%;%?%p2%t;4%;%?%p1%p3%|%t;7%;%?%p4%t;5%;%?%p7%t;8%;m
sgr0	Reset attributes	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E(B\E[m Bobcat: \E[m
sitm	Enter italics mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[3m
smacs	Enter alternate charset mode	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E(0
smam	Enable line wrap	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[?7h
smcup	Enter alt screen	Rio, WezTerm, foot: \E[?1049h\E[22;0;0t AbsoluteTelnet/SSH, Bobcat, contour, ghostty, iTerm2, kitty: \E[?1049h
smir	Enter insert mode	Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[4h
smkx	Keypad transmit mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, foot, ghostty, iTerm2: \E[?1h\E= contour, kitty: \E[?1h
smso	Enter standout mode	AbsoluteTelnet/SSH, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[7m
smul	Enter underline mode	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[4m
tbc	Clear all tabs	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[3g
tsl	To status line	contour: \E[2$~\E[1$}\E[H\E[2J WezTerm: \E]0; Rio, foot, ghostty, kitty: \E]2;
u6	CPR response format	AbsoluteTelnet/SSH, Rio, WezTerm, foot, ghostty, iTerm2, kitty: \E[%i%d;%dR
u7	CPR request	AbsoluteTelnet/SSH, Rio, WezTerm, foot, ghostty, iTerm2, kitty: \E[6n
u8	DA response format	Rio, WezTerm, foot, ghostty, kitty: \E[?%[;0123456789]c iTerm2: \E[?1;2c AbsoluteTelnet/SSH: \E[?62;1;2;4;6;7;8;9;15;21;22;28;52c
u9	DA request	AbsoluteTelnet/SSH, Rio, WezTerm, foot, ghostty, iTerm2, kitty: \E[c
ul	Transparent underline	iTerm2: 0
vpa	Vertical position	AbsoluteTelnet/SSH, Bobcat, Rio, WezTerm, contour, foot, ghostty, iTerm2, kitty: \E[%i%p1%dd
xenl	Newline glitch	WezTerm, iTerm2: 1
xm	Exit marks mode (kitty)	WezTerm, foot, ghostty: \E[<%i%p3%d;%p1%d;%p2%d;%?%p4%tM%em%;
xr	Exit reset mode (kitty)	ghostty: \EP>\|[ -~]+a\E\ foot: \EP>\|foot\([0-9]+\.[0-9]+\.[0-9]+(-[0-9]+-g[a-f[0-9]+)?\)?\E\
xt	Destructive tabs	iTerm2: 0
xvpa	Extended vertical positioning	iTerm2: 0

Performance

Note

Test duration and resources used is not an indicator of software quality.

We make a best effort to track CPU and System Memory for linux systems, only. Docker and cgroups are used to enforce a 2 CPU limit but it is not reliable. Many terminals use GPU memory not tracked. Some terminals perform differently under docker. Further, some have complex process groups, chrome, or OS-integration of shared resources that may not be accurately reflected here.

The Resources score combines CPU, memory, and runtime into a single 0-100 metric, excluded from the final score. See per-terminal pages for calculation details.

Terminal	Score	CPU %	RSS (MB)	Time (s)
urxvt	100	10.2	23.8	4
foot	97	29	29.9	1
XTerm	92	34	28.6	2
st	86	36.8	19.4	6
pterm	77	34.3	65.2	5
alacritty	67	49.5	124.9	5
mlterm	65	52.1	28.1	31.3
terminology	56	49.5	92.7	24.6
Bobcat	56	45.3	132.3	20.1
contour	50	37.6	202.2	27
Rio	50	47.2	109.7	40.4
QTerminal	50	56	140.3	28.1
GNU Screen	50	0	260.8	899.7
zutty	49	136.8	124.8	14.1
ghostty	46	137.9	276.9	8
libvterm	46	18.3	58.8	315.2
Konsole	41	57.6	211.5	44.9
tmux	37	66.1	235.8	52
Zellij	37	51.1	265.9	61.1
Warp	33	66.5	382.6	49.4
WezTerm	26	102.5	175.2	152.3
kitty	24	25.2	205	632.4
cool-retro-term	23	153.4	519.3	45.2
GNOME Terminal	21	11.6	111.6	3302.1
Extraterm	20	33	433.7	359.7
XFCE Terminal	12	21.9	156.7	3302.8
Terminator	11	20.1	175.2	3303.1
Tabby	0	153.1	939.2	291.2

CPU usage during test execution, all terminals overlaid.

RSS memory usage during test execution, all terminals overlaid.

Trade-off between mean CPU % and total test duration. Dots near the origin use less CPU and less time. Dashed contours show equal CPU × time product (lower percentile = better).

Total test duration for each terminal, sorted fastest to slowest. Log scale on the X axis.

Full Report by Terminal

• AbsoluteTelnet/SSH
• contour
• kitty
• ghostty
• foot
• Rio
• Konsole
• WezTerm
• WindowsTerminal
• mintty
• tmux
• iTerm2
• TeraTerm
• Warp
• XTerm
• mlterm
• alacritty
• urxvt
• zutty
• Zellij
• Apple_Terminal
• st
• Bobcat
• cool-retro-term
• pterm
• GNOME Terminal
• Terminator
• XFCE Terminal
• Tabby
• xterm.js
• libvterm
• Extraterm
• GNU Screen
• Hyper
• weston-terminal
• QTerminal
• securecrt
• terminology
• ConEmu