Universal video converter
Drop in any video. Pick what you want out: another format, just the audio, a GIF, or a resized copy.
drop a video here
or click to choose
About the universal converter
This is the kitchen-sink tool. Whatever you have, whatever you want out, this is where to do it. For more specific needs there are focused pages: compress, trim, extract audio, video to GIF, resize.
Which output format should I pick?
- MP4 (H.264) — the default for almost everyone. Plays on every device, every browser, every player.
- WebM (VP9) — smaller than MP4 at the same quality, but not supported on iOS Safari natively. Good for the web.
- MOV — same H.264 codec as MP4, but Apple-flavored container. Final Cut and iMovie prefer this.
- MKV — Matroska. Holds anything; some players still don't play it.
- GIF — for short looping clips. For nicer GIFs use the dedicated GIF tool.
- MP3 / WAV / FLAC / Opus / AAC — strips video, keeps just the audio. Or use the audio extraction tool.
FAQ
Does the file get uploaded anywhere?
No. Open this page, turn off your wifi, then try a file — it still works. That's the test.
What's the maximum file size?
Browser memory is the limit. WebAssembly caps at 2–4 GB per file. Most laptops handle 1080p videos under a gigabyte comfortably.
Why is it slow on my phone?
FFmpeg-WASM runs on your CPU, not hardware video encoders. Phones have less CPU, so encoding takes longer.
Can I cancel mid-encode?
Yes. The Cancel button terminates the worker immediately. You'll wait a few seconds the next time you start.