Subtitle Merger
Merge subtitles one-to-one, one-to-many, or many pairs with multiple merge modes.
Subtitle Merger
Merge subtitles one-to-one, one-to-many, or many pairs with multiple merge modes.
| Output | Size | Actions |
|---|---|---|
| base-merge-merged.srt | 265 chars |
About this subtitle merger
The subtitle merger combines subtitle files, with modes for joining one file after another, pairing two tracks together, or merging many pairs at once. It is useful for stitching split parts back into one file or building a bilingual track that shows two languages together.
Merging by hand means juggling timings and cue numbers, which is slow and error-prone. The tool keeps the cues ordered and renumbered so the combined file plays correctly. Preview the joins, especially where two files meet, to confirm the timing lines up.
Common uses
- Join subtitle files that were split into parts back into one track.
- Build a bilingual subtitle file by pairing two language tracks.
- Batch-merge many subtitle pairs in one step.
Helpful tips
- Confirm the files are in the right order before merging sequential parts.
- For bilingual tracks, check the paired lines land on the same cues.
- Preview around the join points, where timing problems most often appear.
How to use Subtitle Merger
- Upload or paste the subtitle file you want to handle with Subtitle Merger.
- Confirm the source format, cue order, encoding, and timing style before making changes.
- Run the conversion, cleanup, timing shift, merge, or edit action with a small timing check in mind.
- Preview captions near the beginning, middle, and end of the video to catch drift or formatting issues.
- Export the subtitle file in the format your video editor, player, or publishing platform expects.
Frequently asked questions
Can I merge two languages into one subtitle file?
Yes. A pairing mode combines two tracks so both languages appear together, which is common for bilingual captions.
Will merging keep the cue numbering correct?
Yes. The merged file is renumbered and ordered so it plays correctly. Preview the joins to confirm the timing aligns.
Is Subtitle Merger free, and does it work on mobile?
Yes. Subtitle Merger is free to use on JustBloc with no account or installation, and the page is designed to work on desktop, tablet, and mobile browsers.