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Convertto

Video to GIF Converter

Turn a video clip into an animated GIF with control over frame rate and size.

To convert a video to GIF, add your clip and set the start time, length, frame rate and width. The converter generates an optimised colour palette from your specific clip before encoding, which avoids the harsh banding that single-pass GIF conversion produces.

Runs in your browser
Palette
Generated per clip for better colour
Engine
FFmpeg compiled to WebAssembly
First run
Downloads ~30 MB of FFmpeg core, then cached
Upload
None — the file never leaves your device
Privacy
Runs entirely in your browser — nothing is uploaded
Cost
Free, unlimited, no sign-up

Frequently asked questions

Why is my GIF so large?

GIF is an old format with no inter-frame video compression, so file size scales with frames × dimensions. Reduce the frame rate to 10–12 fps and the width to 480 px, and keep clips under about 6 seconds.

Why is the first run slow?

The FFmpeg WebAssembly core is about 30 MB and downloads once per session. After that it stays in the browser cache, and subsequent conversions start immediately.

Is my video uploaded anywhere?

No. FFmpeg runs inside your browser as WebAssembly, so the file is read from disk into memory and never sent to a server. That is also why there is no file size limit beyond your available RAM.

Why is it slower than desktop FFmpeg?

WebAssembly runs single-threaded here and cannot use your GPU, so encoding is typically several times slower than a native build. For a short clip that is fine; for a feature-length film, use desktop FFmpeg.

How to use the video to gif converter

  1. 1Select your video file — the file stays on your device and is never uploaded.
  2. 2Enter or paste your start at.
  3. 3Set the length.
  4. 4Set the frame rate.
  5. 5Set the width.
  6. 6Press Run, then download the result when it is ready.

Embed this tool

Put the working video to gif converter on your own site. It runs in your visitors' browsers exactly as it does here — free, no account, nothing uploaded.

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