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WEBM to MP4 converter

Convert WEBM to MP4 for free, with no sign-up and no paywall after upload.

    Converted on our server · deleted after 60 min · Free limits

    Where it runs
    Our server, files deleted in 60 min
    Free allowance
    25 files a day, up to 200 MB each
    Typical time
    Seconds to re-wrap; about the playing time to re-encode
    Sign-up
    Not needed

    What happens to your WEBM

    If the video is already H.264 or HEVC, we re-wrap it into MP4 without re-encoding. That takes seconds and loses nothing.

    Otherwise the video is re-encoded with settings that look the same as the original at a sensible file size. Large videos take roughly as long as they play.

    This conversion runs on our server. Your file is deleted within 60 minutes, and you can delete it yourself as soon as you have downloaded the result.

    How to convert WEBM to MP4

    1. Choose your file Tap Choose files and pick the WEBM file, or drop it onto the page. You can add several at once.
    2. Convert to MP4 Tap Convert. The file is sent over an encrypted connection and converted on our server.
    3. Download Tap Download to save the MP4 file. It is deleted from our server within 60 minutes, or straight away if you tap Delete.

    What is a WEBM file?

    Google's open web video format (VP9 or AV1). Screen recorders and browsers produce it; iPhones and editors often cannot open it.

    Chrome, Firefox, Edge and VLC play WEBM.

    More about WEBM files

    What is an MP4 file?

    The universal video format. MP4 with H.264 plays on every phone, browser, TV and social network.

    Every phone, browser and media player plays MP4.

    More about MP4 files

    Questions

    Is converting WEBM to MP4 free?

    Yes. You can convert up to 25 files a day on our server for free, each up to 200 MB, with no sign-up. The limit is shown before you upload, and we never ask you to pay to download a file you have already converted.

    Is it safe to convert my WEBM files here?

    Yes. Files travel over an encrypted connection, are processed on our own server, and are deleted within 60 minutes. Nobody looks at them, and you can delete them yourself straight after downloading.

    How long does WEBM to MP4 take?

    Seconds to re-wrap; about the playing time to re-encode. Bigger files take longer, and you can watch the progress on each file.

    Can I convert WEBM to MP4 on my iPhone or Android phone?

    Yes. The converter works in Safari, Chrome and any modern browser. Tap Choose files, pick from Photos or Files, and download the result to your phone.

    How do I open an MP4 file?

    Every phone, browser and media player plays MP4.

    Convert WEBM to other formats

    Convert other files to MP4