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OSC 52 clipboard write
OSC 52 clipboard write sets the system clipboard content. The sequence
ESC ] 52 ; c ; base64-data BEL sets the clipboard to the decoded base64 content. Most modern terminals support clipboard write, though some require explicit opt-in for security (e.g., iTerm2 prompts the user). Write-only support is more common than read support — many terminals allow setting the clipboard but block reading it back to prevent clipboard snooping by malicious programs.Analysis2026-03-29
Supported by all 8 tested terminals — universal adoption. Part of the Modern TUI baseline.
Supported by 10 of 18 backends (56%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| cmux | ✓ yes | ||
| Ghostty | 1.3.1 | ✓ yes | |
| Kitty | 0.46.2 | ✓ yes | |
| VS Code | 1.113.0 | ✓ yes | |
| Warp | 0.2026.03.18.08.24.03 | ✓ yes | |
| Cursor | 2.6.21 | ✓ yes | |
| Terminal.app | 2.15 | ✓ yes |
Headless Backends
Parser correctness only — a ✓ means the parser accepts the sequence.
| Backend | Version | Support | Notes |
|---|---|---|---|
| Alacritty | 0.26.0 | ? unknown | |
| vt100.js | 0.2.1 | ? unknown | |
| vterm | 0.2.0 | ? unknown | |
| WezTerm | 0.1.0-fork.5 | ? unknown | |
| xterm.js | 5.5.0 | ? unknown | |
| xterm.js | 6.0.0 | ? unknown | |
| xterm.js | 5.4.0 | ? unknown | |
| xterm.js | 6.1.0-beta.195 | ? unknown |