BYTETOOLS

Change Video Frame Rate (FPS)

Convert a video to 24, 25, 30, 50, 60 or any custom FPS online, free. Fix frame-rate mismatches in your browser — nothing is ever uploaded.

Drop a video here or click to browseYour video is processed locally and never uploaded.

What is the Change Video Frame Rate (FPS)?

The ByteTools frame rate changer converts a video to a target FPS — 24 for a film look, 25/50 for PAL workflows, 30 for standard online video, 60 for smooth motion, or any custom value from 1 to 120.

  • Presets for 24, 25, 30, 50 and 60 fps plus custom 1–120
  • Honest guidance on dropping vs duplicating frames
  • H.264 + AAC MP4 output for editors and players
  • Audio timing is untouched and stays in sync
  • 100% local processing — never uploaded
  • Free and unlimited

How to use the Change Video Frame Rate (FPS)

  1. 1

    Drop a video onto the box or click to browse for one.

  2. 2

    Choose a preset frame rate, or pick Custom and type any FPS from 1 to 120.

  3. 3

    Click Change frame rate and wait for the re-encode.

  4. 4

    Preview the clip and download the MP4.

About the Change Video Frame Rate (FPS)

The ByteTools frame rate changer converts a video to a target FPS — 24 for a film look, 25/50 for PAL workflows, 30 for standard online video, 60 for smooth motion, or any custom value from 1 to 120. It's the quick fix for editors that demand matching frame rates and for trimming file size on screen recordings.

Be aware of the physics: lowering the frame rate drops frames, which shrinks files but makes motion choppier; raising it duplicates existing frames — it makes the file bigger and satisfies technical requirements, but cannot invent smoothness that was never recorded.

The conversion runs 100% locally in your browser using a WebAssembly build of ffmpeg. Your video is never uploaded anywhere — no server, no account, no watermark — and the result is a standard H.264 MP4 with AAC audio that drops straight into any editor, player or upload form.

Frequently asked questions

Does converting 30fps to 60fps make my video smoother?

No — the converter duplicates each frame rather than inventing new ones, so motion looks identical to the 30 fps original. Real smoothness requires motion interpolation or a source recorded at 60 fps. Converting up is mainly useful when a platform or editor demands a specific rate.

Will lowering the FPS make my file smaller?

Usually yes. Fewer frames per second means less data to encode, so converting a 60 fps screen recording to 30 fps typically cuts the size substantially with little visible cost for static content like slides or code.

Which frame rate should I use?

Use 24 fps for a cinematic feel, 25 or 50 fps for European (PAL) broadcast workflows, 30 fps for general online video and 60 fps for gaming or fast sports. Matching your project timeline's rate matters more than any absolute number.

Does changing the frame rate affect audio sync?

No. The fps filter retimes only the video frames while the duration stays the same, and the audio track is carried across unchanged, so sound remains in sync throughout.

Is my video uploaded during the conversion?

No. The re-encode happens entirely in your browser via WebAssembly — the file never leaves your machine, and there are no upload limits or watermarks.

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