PRIVATE SUBTITLE TOOLS
Subtitle checker & repair
Check SRT and WebVTT files for overlaps, reading speed, empty text and duplicates. Preview selected repairs and export a report.
Free to use. Files stay on your device.
01
Open your files
Open an SRT or WebVTT file and set reading-speed and line-length limits.
02
Review the result
Inspect overlaps, empty text and duplicate cues. Preview selected repairs before applying them.
03
Export with care
Export the revised subtitles and a check report. Review the result with your video.
Read the subtitle workflow guide. JavaScript enables the local workspace; subtitle content is never uploaded.