Measure, don't guess
Compatibility Lab
Paste any styled name and see its text metrics, Unicode risks and documented field limits for common platforms, plus a plain fallback. The lab reports what can be measured and says plainly where a result is a judgement.
Text metrics
Unicode risks
Documented field limits
| Field | Documented limit | Counted as | Status |
|---|
Limits are taken from each platform's public help pages at the time of writing and can change without notice. Status compares your text's length against the documented number; it is not a guarantee of acceptance. Compatibility method.
Plain fallback
Frequently asked questions
What does the Compatibility Lab check?
Grapheme, code-point, UTF-16 and byte counts; script and direction; combining marks, emoji, variation selectors and bidi or zero-width controls; and a comparison against documented field limits.
Does a green status mean the platform will accept it?
No. It means the length is within the documented limit. Symbol filters and moderation are applied by the platform and cannot be tested here.
What is the plain fallback?
Your text with decorations removed and fancy letters mapped back to plain Latin where possible — the version to keep if a platform rejects the styled one.