Subtitle Validator
Check your subtitles for issues that break players or look unprofessional.
- In your browser
- Files never uploaded
- Free
Drop your subtitle file here, or click to browse
SRT, VTT, ASS, SMI, TTML, SBV, LRC, MicroDVD, SubViewer
Frequently asked questions
What does the validator check?
It checks durations, line count and length, overlaps, and parser warnings.
My file passes, but my player still will not show subtitles.
That is likely a player codec or container issue. Try converting the file to VTT.