Convert video format in your browser

Easily convert videos between MP4 and WebM formats directly on your device. Converting formats is essential when you need a specific container for a website, an application, or a specific device. Your files never leave your device, ensuring complete privacy and fast processing speeds.

How to use Convert Video

Select a video file from your computer or phone.
Choose the target format you want to convert to (MP4 or WebM).
Click the convert button to begin the process.
Wait a moment while your browser performs the conversion.
Download the final converted video to your storage.

Frequently Asked Questions

Which format should I choose?: MP4 plays almost everywhere, including phones, messaging apps and social platforms, making it the safest choice for sharing. WebM is an open format that often produces smaller files and is well supported by modern web browsers, ideal for embedding on websites.
Will converting reduce video quality?: If the video can simply be repackaged into the new container (which happens when the codecs match), there is no quality loss at all. If the codec has to change, the video is re-encoded and some minor quality loss is inevitable, though often imperceptible.
Is this conversion process private?: Absolutely. The conversion runs in your browser via WebAssembly and WebCodecs. No file is ever transmitted over the network.

Accepted formats: MP4, WEBM, MOV, MKV