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Tab Stops (HT)
HT (0x09) advances the cursor to the next tab stop. Default tab stops are at every 8th column. Terminals should support HTS (ESC H) to set custom tab stops and TBC (CSI 3 g) to clear them.
How this is tested: Send a tab character, verify cursor moves to column 8.
Analysis2026-03-26
Supported by all 8 tested terminals — universal adoption. Part of the Core TUI baseline.
Supported by 12 of 13 backends (92%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| VS Code | 1.112.0 | ✓ yes | |
| Warp | 0.2026.03.18.08.24.03 | ✓ yes | |
| Cursor | 2.6.21 | ✓ yes | |
| tmux | 3.6a | ✓ yes | |
| Kitty | 0.46.2 | ✓ yes | |
| Terminal.app | 2.15 | ✓ yes | |
| GNU Screen | 5.0.1 | ✗ no | Screen's tab stop handling differs from direct terminal |