Video Converter
Convert between MP4, MOV, MKV, WebM and AVI. Compatible files convert instantly without any quality loss.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Video Converter
- 1
Drop a video into the box above or click to select it.
- 2
Pick the output format: MP4, WebM, MOV, MKV or AVI.
- 3
Click Convert and download the converted video.
Features
- Instant when possibleIf the codecs already fit the new container, streams are copied — no re-encoding, no quality loss.
- All popular formatsRead almost any video format and export to MP4, WebM, MOV, MKV or AVI.
- PrivateYour video is converted locally with ffmpeg.wasm and never uploaded.
- No watermarkFree with no watermark, sign-up or size limit from us.
Frequently asked questions
Which format should I choose?
MP4 plays everywhere and is the safest choice. WebM suits websites, MOV suits Apple editing apps and MKV keeps multiple audio or subtitle tracks.
Does converting reduce quality?
Not when streams can be copied, which is common for MOV → MP4 or MKV → MP4. Otherwise the video is re-encoded at high quality.
Is my video uploaded?
No. Conversion runs entirely in your browser, so your video never leaves your device.