Subtitle Framerate Converter — Free & Online
Fix subtitles that drift because of a framerate mismatch — convert between 23.976, 24, 25, 29.97 and 30 fps with one click. The classic PAL/NTSC film fix.
How to use the Subtitle Framerate Converter
- Identify the mismatch. Subtitles drifting steadily usually means a PAL/NTSC framerate difference.
- Pick source and target fps. Choose e.g. 23.976 → 25 for an NTSC-film subtitle on a PAL video.
- Download converted file. All cue timings are rescaled and the fixed SRT downloads.
Frequently Asked Questions
Why do subtitles need framerate conversion?
When a subtitle timed for 23.976fps film plays on a 25fps PAL video (or vice versa), it drifts steadily out of sync. Rescaling all timestamps fixes it.
How do I know which framerates I have?
Rule of thumb: if subtitles drift slowly over ~90 minutes, try 23.976 → 25 first. If they are off by a constant amount instead, use the Subtitle Shifter.