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 (VP8) — a royalty-free format for the web. The VP9 encoder crashes the browser build of FFmpeg, so WebM output here uses VP8, which is slower than H.264 and usually produces a larger file.
- 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. Nothing is uploaded. Open your browser's network tab while you convert and you will see your file never leaves the page. Once the converter itself has downloaded, it keeps working on this device even with no connection.
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.