Change subtitle frame rate
Convert subtitle timing between any two frame rates: 23.976, 24, 25, 29.97 or 30 fps, or type your own.
Positive shows subtitles later, negative sooner. Seconds, or a time like 00:01:05,300.
Find each line in your video and type when it is actually spoken.
Pick the output format below. Timing and text are kept.
| # | Before | After | Text |
|---|
How it works
- Drop in your subtitle file.
- Choose the frame rate the subtitles were made for, and the frame rate of your video.
- Download the converted file.
Questions
Where do I find my video’s frame rate?
In VLC open Tools → Codec Information, or in most players look at the media info panel. Files ripped from European discs are often 25 fps, film releases 23.976.
Does this work for frame-based .sub (MicroDVD) files?
Yes. MicroDVD files store frame numbers, so the tool reads them at the source frame rate and writes the result with real timestamps.
Is my subtitle file uploaded anywhere?
No. Your browser reads and fixes the file on your own computer. Nothing is sent to a server, so private files are fine, and the tool keeps working offline once the page has loaded.