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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.How this is testedautomated
Send
Send
OSC 52;c;base64-data BEL and verify the terminal remains responsive.The same probe runs against headless backends (via Termless) and real terminal apps (via a daemon launched in each terminal). This lets us distinguish parser correctness from rendering correctness.
Analysis2026-04-06
Supported by all 7 tested terminals — universal adoption. Part of the Modern TUI baseline.
Supported by 14 of 14 backends (100%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| VS Code | ✓ yes | ||
| Warp | ✓ yes | ||
| Cursor | ✓ yes | ||
| Terminal.app | ✓ yes |