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Emoji ZWJ sequences (2 cols)
Zero Width Joiner (ZWJ) sequences combine multiple emoji into a single glyph. For example, 👨👩👧👦 (family) is four person emoji joined with ZWJ characters. A terminal that handles ZWJ correctly renders this as a single 2-column wide glyph, not as four separate emoji.
How this is tested: Write a ZWJ sequence (e.g., family emoji), verify it renders as a single 2-column glyph rather than separate emoji.
Supported by 6 of 13 backends (46%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| cmux | 0.62.2 | ✓ yes | |
| Kitty | 0.46.2 | ✓ yes | |
| VS Code | 1.112.0 | ✗ no | width=8, expected 2 |
| Warp | 0.2026.03.18.08.24.03 | ✗ no | width=8, expected 2 |
| Cursor | 2.6.21 | ✗ no | width=8, expected 2 |
| Terminal.app | 2.15 | ✗ no | width=11, expected 2 |