FREE · PRIVATE · NO SIGNUP
Free online video converter
Convert videos to MP4, WebM, or MOV directly in your browser. Your source file stays on your device and is never uploaded to our servers.
- 100% private, on-device processing
- No account required
- MP4, WebM, and MOV output
Browser tools
Private, focused tools that process your files on this device.
Flexible video format conversion
Choose MP4 for broad compatibility, WebM for modern web delivery, or MOV for workflows that prefer a QuickTime container. Advanced controls let you choose a compatible video codec, audio codec, or audio sample rate.
The converter keeps the original dimensions and adjusts odd pixel dimensions only when an encoder requires an even frame size.
Private, browser-based processing
Conversion runs in your browser with FFmpeg WebAssembly. The selected video is read through a browser-local, read-only file mount and is not sent to a remote conversion server.
The browser downloads the FFmpeg runtime from jsDelivr when the engine is first needed. That request does not include your video.
Compatible format and codec choices
MP4 and MOV use H.264 video with AAC audio. WebM uses VP8 video with Opus or Vorbis audio. You can also remove the video or audio track when the selected container supports the remaining track.
Frequently asked questions
Are my videos uploaded?
No. The source video and converted result stay in your browser. Only the FFmpeg application files are downloaded from the runtime provider.
Which output format should I choose?
Choose MP4 for the widest compatibility, WebM for web delivery, or MOV when a QuickTime container fits your editing workflow.
Can I change the video and audio codecs?
Yes. Open Advanced settings to choose a codec combination supported by the selected container or to remove one media track.