Browser fingerprint lab
Emoji rendering
The same emoji string is drawn into a canvas, the pixels are hashed and every emoji's advance width is measured. Apple Color Emoji, Segoe UI Emoji and Noto Color Emoji differ in glyphs, widths and support for new emoji.
Running…
Result
Details
- Pixel hash
- Per-emoji width (px)
- OS hint
- Noise injection
- Emoji 14 glyph missing
- Font
- Test string
What this means
Emoji fonts belong to the operating system and ignore the UA. Windows has no flag glyphs (flags become two letters), Apple's font advances exactly 1 em per emoji, Noto about 1.25 em. The OS hint is only a width-based guess; what decides is the pixel hash compared with real-device baselines. A box for the last emoji (Emoji 14.0) means an older OS.