Split a long SRT file at a specific timestamp into two clean subtitle files.
Your SRT file is split locally in your browser. No upload required.
The Subtitle Splitter cuts a long SRT file into two separate files at an exact point in time. This is especially useful when a 2-hour video has been cut into two 1-hour parts, an online course is divided into modules, or an upload limit requires shorter video segments.
124 00:59:58,200 --> 01:00:02,000 This is the transition between module 1 and module 2. 125 01:00:05,000 --> 01:00:08,000 Welcome to the second part of the course.
Part 1 124 00:59:58,200 --> 01:00:00,000 This is the transition between module 1 and module 2. Part 2 1 00:00:00,000 --> 00:00:02,000 This is the transition between module 1 and module 2. 2 00:00:05,000 --> 00:00:08,000 Welcome to the second part of the course.
If part 2 is exported as its own video, subtitles should usually start at 00:00:00. If you are only splitting the file for archiving, QC or a long master timeline, keeping the original timestamps can make more sense.
| Option | Result | When it makes sense |
|---|---|---|
| Reset part 2 to 00:00:00 | The split time is subtracted from every block in part 2. 01:00:05,000 becomes 00:00:05,000. | For separate video files, course modules, episodes or individual uploads. |
| Keep original timestamps | Part 2 continues to start with times such as 01:00:05,000. | For master projects, archiving or when the subtitles should still match the long original file. |
A subtitle can start before the split and end after it, for example 00:59:58,200 → 01:00:02,000. The tool offers three strategies so no broken SRT blocks are created.
| Setting | What happens? | Recommendation |
|---|---|---|
| Split into both parts | The block is cut at the split point. Part 1 ends exactly at 01:00:00, and part 2 starts at 00:00:00 or at the original time. | Default for clean cuts between two video files. |
| Keep in part 1 | The full overlapping block stays in the first file. | Good when the spoken sentence still belongs to part 1. |
| Move to part 2 | The full overlapping block is moved to the second file. | Good when the new video part starts in the middle of a sentence and that sentence is still needed there. |
Split a long webinar or training session into module 1, module 2 and module 3 without manually renumbering subtitles.
Export separate subtitle files for chapters, highlights or newly edited YouTube uploads.
When a long recording is later cut into individual episodes, you can split the SRT file to match.
Many platforms, LMS systems or client tools work better with shorter video files and separate subtitle files.
If your SRT file is already out of sync before splitting, both parts will also be wrong afterward. Shift the timing first with the Subtitle Time Shifter.
The SRT file is processed completely locally in your web browser. Your subtitles are not uploaded and are not stored on our servers.
Choose your long .srt file or drag and drop it into the upload area.
Enter the timestamp, for example 01:00:00, and choose how part 2 and overlapping blocks should be handled.
Click split and download both newly numbered SRT files.
Yes. Enter 01:00:00 as the split time. The tool creates part 1 up to the first hour and part 2 from that point onward.
For separate video files, that is usually correct. If part 2 should still match the original long timeline, you can keep the original timestamps.
You can split those blocks at the split point, keep them completely in part 1 or move them completely to part 2.
Yes. Both output files are renumbered starting from 1.
This page is optimized for SRT. If you have a VTT file, convert it first with the VTT to SRT Converter.
Yes. Processing runs locally in the browser. Your file is not uploaded.
The source file was probably already out of sync. Correct the constant offset first with the Subtitle Time Shifter and then split the file again.