FileCrafty Files never leave your device

Convert WebM to MP4

Turn WebM files into MP4. Free, no sign-up, and your files never leave your device.

    How to convert WebM to MP4

    1. Click the box above or drag your WebM files into it.
    2. Each file is converted to MP4 automatically — you see the progress for every file.
    3. Click Download next to each result.

    About WebM and MP4

    WebM is an open web format (VP9 / Opus). Screen recordings from browsers are often WebM, but iPhones and some editors can’t open it.

    MP4 is the most widely supported video format — it plays on phones, TVs, browsers and social networks.

    Frequently asked questions

    How do I convert WebM to MP4?

    Drop your WebM files into the box above. Each one is converted to MP4 in your browser — then click Download.

    Are my files uploaded?

    No. FileCrafty converts files inside your browser, so they never leave your device.

    Which browsers are supported?

    Recent Chrome, Edge and Safari work best. Firefox works for most files.

    More media tools

    More free tools

    Compress videoShrink MP4, MOV and WebM to 10 MB for Discord, 25 MB for email or any size you need.Video converterConvert iPhone MOV, WebM and MKV videos to MP4 that plays everywhere.Video to MP3Extract the sound from any video and save it as MP3, WAV or M4A.Audio converterConvert WAV, M4A, FLAC and OGG to MP3 — or MP3 to WAV — in bulk.MP3 cutterTrim songs and voice memos on a waveform, add fades, or make a ringtone.Video to GIFTurn any moment of a video into an animated GIF — choose size and smoothness.