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.webm WebM Video

WEBM Converter

WebM is Google's open video format using VP8/VP9 and Opus. It is built for the web and is what screen recorders and browsers produce.

  • No upload — 100% private
  • Fast, lossless when possible
  • Free & unlimited
  • Works on iPhone & Android

    Quality
    Advanced options
    Fit
    Trim (optional)
    Use minutes:seconds, e.g. 1:05.5

    WEBM at a glance

    Full nameWebM Video
    TypeVideo
    CompressionLossy (compressed)
    Developed byGoogle
    Introduced2010
    File extension.webm
    Plays on iPhone◐ Partly / with an app
    Plays on Android✓ Yes
    Plays on Windows✓ Yes
    Plays on Mac◐ Partly / with an app

    WEBM is best for web video, HTML5 players and screen recordings.

    Convert WEBM to…

    WEBM to MP4WEBM to MOVWEBM to MKVWEBM to AVIWEBM to FLVWEBM to WMVWEBM to 3GPWEBM to M4VWEBM to MPGWEBM to TSWEBM to GIFWEBM to MP3WEBM to M4AWEBM to M4RWEBM to AACWEBM to ALACWEBM to WAVWEBM to FLACWEBM to OGGWEBM to OPUSWEBM to WEBAWEBM to WMAWEBM to AIFFWEBM to AC3WEBM to CAF

    Convert to WEBM from…

    MP4 to WEBMMOV to WEBMMKV to WEBMAVI to WEBMFLV to WEBMWMV to WEBM3GP to WEBMM4V to WEBMMPG to WEBMTS to WEBMGIF to WEBMMTS to WEBMVOB to WEBMHEVC to WEBMRMVB to WEBM

    Frequently asked questions

    What is a .webm file?
    WebM is Google's open video format using VP8/VP9 and Opus. It is built for the web and is what screen recorders and browsers produce.
    How do I open a WEBM file?
    VLC Media Player opens most .webm files on Windows, Mac, Android and iPhone. If your phone's gallery or a website rejects it, convert it to MP4 above. MP4 is the format every device and app accepts.
    Can I convert WEBM for free?
    Yes. The converter on this page is free and unlimited, and it works without uploading anything.