Subtitle Converter
Convert between SRT and VTT and shift every cue's timing
- Files never leave your device
- Runs in your browser
- Free, no sign-up, no watermark
Subtitles
Open a subtitle file
Result
How to use Subtitle Converter
Convert subtitles between SRT, WebVTT and plain text, and fix the timing along the way: shift every cue, convert between 23.976, 24 and 25 fps, renumber, strip formatting and merge duplicates. A validation report flags broken or overlapping cues.
- 1
Paste subtitle text, open a subtitle file (SRT, VTT or ASS), or click Try a sample.
- 2
Under Output, pick SRT, WebVTT or Plain text.
- 3
Optionally set a Shift in milliseconds, choose a Frame-rate conversion, and turn on Renumber cues, Remove formatting tags or Merge duplicates.
- 4
Check the Validation list, then copy the result or click Download.
Frequently asked questions
Can it convert to ASS?
No. ASS files can be read, but the output is SRT, WebVTT or plain text. ASS styling and override tags are not carried over.
The subtitles drift further out of sync over time. How do I fix that?
That usually means a frame-rate mismatch, for example a 23.976 fps film shown at 25 fps. Choose the matching Frame-rate conversion. A constant delay is fixed with Shift instead.
The text looks garbled after opening a file.
The file is not UTF-8. Choose the right Text encoding, such as GBK, Big5, Shift_JIS or Windows-1252.
What does Plain text produce?
Only the dialogue, one cue per line, without numbers, timings or tags. Handy as a transcript.
What does the validation check?
It lists unreadable blocks, invalid or negative times, cues that end before they start, empty cues, and cues that overlap or are out of order, with line numbers.
Are my subtitles uploaded?
No. Conversion runs in your browser.