What the checker looks for
The validator checks parse errors, sequence IDs, timing order, overlaps, gaps, duration, line length and reading-speed limits without silently rewriting the file.
Subtitle tools
Subtitle Fixer & Validator
Inspect subtitle structure and readability problems, jump to affected cues, and choose which safe fixes to apply.
Your subtitle file is processed in your browser and is not uploaded to Voice2Sub.
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Apply only the fixes you want
Safe fixes are selectable. Review the affected cue and keep unrelated diagnostics visible until you decide how to resolve them.
Need subtitles created automatically from audio or video?Voice2Sub can transcribe spoken audio when you need a complete subtitle workflow instead of a file utility.
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