MP4 converter
Pick what to do with a MP4 file. Everything runs in your browser, nothing is uploaded.
Convert MP4 files free and in your browser. Pick a target format or a tool below, drop your file in, and download the result. Nothing is uploaded, so your files stay on your device.
Common MP4 conversions include MOV, MKV, WebM, AVI, M4V, FLV, among others.
About MP4
MP4 is the universal video format. It plays on every device and platform, which makes it the safe default for sharing and uploading.
Questions
Is the MP4 converter free?
Yes, it is free with no sign-up and no watermark. There is no cap on how many files you can convert, and nothing to install.
Do my files get uploaded to a server?
No. The conversion runs entirely in your browser using code that loads onto your device, so the file is read, converted, and downloaded locally. It never reaches us or anyone else.
Which format should I convert my MP4 to?
It depends on what you need. For wide compatibility choose a mainstream format; for the smallest file choose a modern, efficient one. Each conversion page explains the trade-off.