File Converter

MP4 converter Free, private, no upload.

MP4 is the most widely supported video format, typically H.264 video with AAC audio. Convert MP4 files to WebM, MOV, MKV, AVI and more, privately in your browser.

or drop files anywhere · paste with Ctrl/⌘ + V

Convert MP4 to images

Frequently asked questions

What is a MP4 file?

MP4 is the most widely supported video format, typically H.264 video with AAC audio. MP4 plays on every phone, browser, TV, social network and video editor.

What can I convert MP4 files to?

WebM, MOV, MKV, AVI, GIF, MP3, WAV, OGG, Opus, AAC, M4A, FLAC, AIFF. Pick a target after adding your files.

Are my files uploaded to a server?

No. The conversion runs entirely in your browser using WebAssembly. Your files never leave your device, so it is safe for private photos, contracts and business data. Once the page has loaded it even works offline.

Is it free? Are there limits?

It is free, with no sign-up, no watermark and no daily limits. Because nothing is uploaded there is no upload size limit either; the only limit is your device’s memory, which matters mostly for very large videos.