Open an SRT or WebVTT file.
GIF & Video Tools
Subtitle Editor &
Subtitle Editor &
Timing Fixer
Edit SRT and WebVTT captions, shift timings, repair overlaps and check a local video preview.
No registration
Fast browser workflow
Direct results
Use 1.5 to delay captions, or -1.5 to show them earlier. Shifts that create negative times are rejected.
Imported styling and positioning are kept when exporting WebVTT. SRT export keeps caption text and timings, but cannot represent WebVTT style blocks.
Captions0
Timing issues0
Last caption ends—
Load a video to preview captions.
| # | Start | End | Caption text |
|---|
Edit timestamps as HH:MM:SS.mmm or HH:MM:SS,mmm. Highlighted rows need attention. Changes update the optional local video preview.
Edit captions or adjust the timing.
Preview and export the corrected subtitles.
Edit subtitle text and repair timing online
Open an SRT or WebVTT file to adjust caption wording, change start and end times, shift a complete track, inspect overlaps and export the result. This subtitle editor is for existing caption files; it does not transcribe speech automatically. An optional video preview helps you check captions against the recording.
Shift an out-of-sync subtitle track
If every caption appears a little early or late, enter an offset in seconds. A positive value delays captions; a negative value brings them forward. Decimal values allow small corrections. The shift applies to the full track and is rejected if it would move any caption before zero, so no text silently disappears at the beginning.
Review individual captions
Edit a row’s text, start time or end time. Keep an end time later than its start and allow enough reading time for the caption. Captions are shown in pages of fifty to keep larger files manageable. Add a caption for missing dialogue or remove a row that should not be present. Recheck the sequence after changing a timestamp.
Inspect and fix overlaps
Overlapping timings are highlighted. Fix overlaps sorts captions by start time and shortens an earlier caption to meet the next start where that can be done without deleting it. Captions sharing exactly the same start cannot always be resolved automatically; review those rows yourself. Some subtitle designs intentionally overlap speakers, so use the repair operation only when overlap is unwanted.
Choose SRT or WebVTT
SRT is a common interchange format for editors and players. WebVTT can also contain cue identifiers, positioning settings and style or note blocks. The editor retains those imported WebVTT details for WebVTT export. Exporting to SRT preserves caption text and timings but drops WebVTT-only blocks and positioning settings. Keep the original file until you have tested the result in its target player.
Preview with a local video
Choose an optional video and play or seek through it to see the current caption text. Browser codec support determines which video files can be previewed; a video that will not play may still work in a desktop editor. The subtitle editor remains usable without a video. To create a thumbnail overview of a recording, try the video contact sheet generator.
Subtitle file limits
Subtitle files can be up to 2 MB and contain up to 2,000 captions. Review timing warnings before exporting your corrected file.