Merge subtitle files
Two files, one set of subtitles.
Output
Paste or type above to see the result here.
Your files stay on your device
This tool runs entirely in your browser. What you paste is processed on your device and is never sent to a server, so it is safe to use with tokens, keys and unpublished text.
How it works
- Paste the first file, then a line of ---, then the second.
- For a film split into two parts, leave it on “one after the other”: the second file’s times are moved so it carries on where the first stopped.
- For two languages over one video, choose “over the same video” and the cues keep their own times, sorted together.
- Copy or download the joined file.
Frequently asked questions
- How does it know where the second part starts?
- From where the first one ended. Add a gap if the two discs had a pause between them, or if the join lands mid-sentence.
- Can I put English and Japanese on the same video?
- Yes — that is what “over the same video” does. Both sets keep their own times and are sorted into one file, so a player that can only load one subtitle track shows both. Lines that overlap will stack; some players handle that better than others.
- What if the two files are different formats?
- That is fine. Both are read either way, and you choose what comes out.
- Do the cue numbers matter?
- No. They are ignored on the way in and renumbered on the way out, so a merged SRT is always numbered from one.
- Is anything uploaded?
- No. It all happens in your browser.
Related tools
⇄ Shift subtitle timing Subtitles that are right except for when they appear. ⇄ SRT to VTT Make SubRip captions work in the browser's video element and web players, without uploading them. ⇄ VTT to SRT Turn web captions into the SubRip format that almost every player and editor accepts, on your own device. ▭ Add subtitles to video An SRT file burned into the picture, so the words show on every screen.