How this video to GIF converter works
This tool runs a full version of FFmpeg compiled to WebAssembly directly inside your browser tab. Choose a video file, drag the two trim handles on the timeline to select exactly the clip you want, then hit Convert. FFmpeg processes the video locally on your device and outputs a GIF — your file never leaves your computer.
When would you use this?
- Social media content — Convert a highlight clip from a longer video into a looping GIF for Twitter, Reddit, or Slack where GIFs autoplay silently.
- Product demos — Turn a screen recording of a feature into a compact GIF to embed in a README, Notion doc, or email without requiring video playback.
- Reaction GIFs — Clip a few seconds from a movie or clip and convert it to a shareable GIF for messaging apps.
- Tutorials and documentation — A short animated GIF showing how to click through a UI is often clearer than a static screenshot and smaller than a video file.
Tips for smaller, better-looking GIFs
- Keep your selection short — 2 to 6 seconds usually looks best and stays a reasonable file size.
- Lower the output width (240px or 160px) for chat apps and forums with strict size limits.
- 10–15 fps is plenty for most clips; higher frame rates increase file size quickly.
- High-motion footage compresses less efficiently than calm, simple scenes.
- This tool uses FFmpeg's palettegen filter to build an optimised 256-color palette for your specific clip, which significantly improves color quality compared to a naive conversion.
How does this compare to other video to GIF tools?
Most online converters — Ezgif, Giphy, CloudConvert — upload your video to their servers before converting. That means your video travels over the internet, sits on someone else's machine, and may be retained for days. This tool converts entirely in your browser, so nothing is uploaded. Conversion starts instantly with no queue, and works offline once the page has loaded.
Desktop tools like Gifox (Mac) or ScreenToGif (Windows) require installation. This tool works on any device with a modern browser — no installation, no account, no watermark.
Is there a file size limit?
Because conversion happens entirely in your browser, the practical limit depends on your device's memory. Most phones and laptops handle clips up to a minute comfortably, but shorter clips convert faster and produce smaller GIFs.
Do you store or see my video?
No. The video is decoded and converted locally using WebAssembly. It is never transmitted anywhere.
Why is my GIF file so large?
GIFs store full color frames without modern video compression. Reducing the width, frame rate, and selection length are the most effective ways to shrink the output.
What video formats are supported?
MP4, WebM, and MOV work best. Other formats may work depending on your browser's built-in video support. If a file fails to load, try converting it to MP4 first.
Can I use this on iPhone or Android?
Yes — it works in mobile browsers. Conversion may be slower on older phones due to WebAssembly processing, but it works on any modern mobile browser.