Video FPS Converter

Change the frame rate of any video — 60 fps to 30 fps, 30 fps to 24 fps for a film look, PAL 25 to NTSC 29.97 — or turn variable-frame-rate phone and screen recordings into constant frame rate for editing. The length and audio sync stay exactly the same.

  • No upload
  • Any frame rate
  • VFR → CFR fix
  • Free, no watermark

Drop videos here

or

You can also paste with Ctrl+V (⌘+V on Mac).
MP4 · MOV · WebM · MKV · M4V · 3GP — several at once

Your videos are processed on your device and are never uploaded.

How it works

How to change the frame rate of a video

Three steps, no upload.

  1. 1

    Add videos

    Drop your videos. Each card shows the detected frame rate and whether it is variable (VFR).

  2. 2

    Choose the frame rate

    Pick 24, 25, 30, 60 fps or type your own, and choose sharp or smooth conversion.

  3. 3

    Convert & download

    Click “Convert” and download the videos or a ZIP.

Why ToolCMB

Frame-rate conversion done right

Exact timing, perfect audio sync, no upload.

Any frame rate

All broadcast and web standards — including 23.976, 29.97 and 59.94 — or any custom value up to 240 fps.

VFR → CFR

Phone and screen recordings often have a variable frame rate that makes editors drift out of sync. The output is always constant.

Frame blending

Blends neighbouring frames for smoother motion when increasing the frame rate.

Same duration

Frames are resampled on an exact time grid, so the video length and audio sync never change.

Real fps detection

The actual frame rate of each video is measured from its timestamps.

Batch conversion

Convert up to 50 videos at once.

Private

Videos are processed in your browser and never uploaded.

Hardware accelerated

Uses your device’s video encoder.

Frame rates explained

The frame rate (fps) is how many pictures a video shows per second. Cinema uses 24 fps, European TV 25/50 fps, American TV 29.97/59.94 fps, and phones and the web usually 30 or 60 fps.

When you lower the frame rate (60 → 30), every second frame is dropped — the video looks the same but the file gets smaller. When you raise it (24 → 60), frames must be repeated or blended; real new motion can’t be invented, but blending makes movement look smoother.

Many phones and screen recorders produce variable frame rate (VFR) video, where the time between frames changes. Editors like Premiere Pro, DaVinci Resolve or Vegas can then drift out of sync with the audio. Converting to a constant frame rate (CFR) fixes this.

Which frame rate should I use?

Frame rateLookTypical use
23.976 / 24 fpsCinematicFilms, music videos
25 fpsTV (Europe)PAL broadcast, EU TV
29.97 / 30 fpsNaturalWeb, phones, US TV
50 fpsSmoothSports (Europe)
59.94 / 60 fpsVery smoothGaming, sports, screen recordings
120 fpsUltra smoothSlow-motion editing, high-refresh displays

Tips

  • Want slow motion or a time-lapse instead? That changes the speed — use Change Video Speed.
  • Check the exact frame rate of a file with the Video Metadata Viewer.
  • Going from 60 to 30 fps roughly halves the bitrate needed — combine it with the Video Compressor for smaller files.
  • For GIFs, 10–15 fps is usually enough: try Video to GIF.
FAQ

Frequently asked questions

Can’t find your answer? Contact us — we reply quickly.

Will the video length change?

No. Only the number of frames per second changes; the duration and the audio stay exactly in sync.

How do I convert 60 fps to 30 fps?

Add your video, tap 30 and click “Convert”. Every second frame is dropped, which keeps the picture crisp.

Can I make a 30 fps video 60 fps?

Yes. Choose 60 and “Smooth (blend)” for smoother motion. Real in-between frames can’t be recreated, but blending reduces judder.

What is VFR and why should I fix it?

Variable frame rate means the time between frames varies. Many editors expect a constant rate and slowly lose audio sync; converting to CFR fixes that.

Which is better: 29.97 or 30 fps?

29.97 is the US broadcast standard; 30 is common for web and phones. Match the frame rate of the rest of your project.

Is my video uploaded?

No. Everything is processed in your browser.

More free video tools

Compress, trim, crop, resize and convert — fast, free and private, right in your browser.

Browse all tools