Sync and clean subtitles
Sync and clean multiple subtitle files in one batch, locally in your browser. Shift timing, correct gradual drift, or remove unwanted text, then download each result. Your subtitle files stay on your device.
Choose subtitle files
Shift timing or clean text in your subtitle files. Picture subtitles? Convert them first.
Adjust subtitle timing and text
Adjust multiple SRT, ASS, WebVTT (VTT), or SubViewer (SBV) subtitle files in one batch, locally in your browser. Choose timing or cleanup settings, review the preview, then download each result. Your subtitle files stay on your device. Picture subtitles such as SUP need OCR conversion first.
Earlier/later offsets, range shifts, and drift correction
A uniform offset moves every cue. A range shift affects cues whose start time falls within the inclusive timestamps you set. Gradual drift correction maps subtitle-time anchors to video-time anchors across the file.
Cleanup can remove meaningful content
Parentheses, brackets, tags, speaker labels, and asterisk-delimited words may contain dialogue, sound descriptions, or formatting. Review the preview and keep an original copy if you may need the removed text.