Change video frame rate
Change a video’s frames per second while keeping its duration and audio.
MP4, MOV, WebM or MKV · up to 500 MB · processed on your device, the file is never uploaded.
You can also drag a video onto this page.
1 to 60. Keeps duration; no motion interpolation.
Your files are processed here, on your device
We do not send your file or text contents to a processing server. No account is needed and there is no daily operation quota. Individual tools have size limits to protect your device’s memory.
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How we handle your data →How to use this tool
- Choose the video on your device or drag it onto the page.
- Adjust the options and press the main button; progress is shown while it works.
- Check the preview of the result and download it.
An example you can verify
Change a video’s frames per second while keeping its duration and audio.
Example input
30 FPS · 0:06 → 15 FPS
Expected result
15 FPS · 0:06
Check the preview of the result and download it.
Change video frame rate: uses and practical guidance
Enter a rate between 1 and 60 frames per second; decimals such as 29.97 are supported. The tool creates a constant-frame-rate video and preserves its duration: it does not speed up or slow down playback. Lowering FPS drops pictures and can make motion less smooth. Raising FPS repeats pictures; it does not invent detail or apply motion interpolation. The video is re-encoded and audio is kept. Check motion and sound synchronization in the result before downloading it.
Change video frame rate. The video is opened and processed in your device’s memory and is never sent to a server, so speed depends on your computer and the file size. Copying tracks without re-encoding is almost instant; re-encoding can take several minutes for long or high-resolution videos. While it works, the page shows progress and a cancel button. Keep the tab open and visible until it finishes, because some browsers slow down background tabs. The 500 MB limit protects device memory. If the file is larger, split it into parts first. The original is never modified: the tool creates a new file that you download.
Change video frame rate. Play the complete result before using it: check that picture and sound stay in sync, that no seconds are missing at the start or end, and that quality is sufficient for your purpose. Open the file in another player or in the application where you will publish it, because every platform has its own limits for duration, size and format. If the result does not play, try MP4, the most compatible format. Always keep the original video until you have verified the new one, and do not overwrite the source file. If the video contains personal data, remember that this tool does not hide faces or voices: it only changes the file.
A practical check before using the result
Change video frame rate. Change a video’s frames per second while keeping its duration and audio. Check the preview of the result and download it.
Settings and limits
Enter a rate between 1 and 60 frames per second; decimals such as 29.97 are supported. The tool creates a constant-frame-rate video and preserves its duration: it does not speed up or slow down playback. Lowering FPS drops pictures and can make motion less smooth. Raising FPS repeats pictures; it does not invent detail or apply motion interpolation. The video is re-encoded and audio is kept. Check motion and sound synchronization in the result before downloading it.