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Convert WEBM to OPUS

Extract the audio from WEBM videos and save it as OPUS — ideal for voice messages, calls and streaming at low bitrates.

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

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

    How to convert WEBM to OPUS

    1. 1

      Tap Choose files and select one or more WEBM files (or drag them in).

    2. 2

      Check that OPUS is selected. Use Advanced options for bitrate, channels or trimming.

    3. 3

      Press Convert. Everything happens on your device — no upload, no waiting in a queue.

    4. 4

      Your OPUS downloads automatically. Converting several files? Grab them all as a ZIP.

    WEBM vs OPUS

    Only the sound is kept — the picture is dropped, so the OPUS file is far smaller than the WEBM video. Phone videos usually carry AAC audio, so in Smart mode the OPUS is extracted instantly with zero quality loss.

    WEBMOPUS
    Full nameWebM VideoOpus Audio
    TypeVideoAudio
    CompressionLossyLossy
    Developed byGoogleIETF / Xiph.Org
    Introduced20102012
    Plays on iPhone◐ Partly / with an app◐ Partly / with an app
    Plays on Android✓ Yes✓ Yes
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac◐ Partly / with an app✓ Yes

    About WEBM and OPUS

    WEBM: 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.

    OPUS: Opus is a modern, highly efficient codec used by WhatsApp voice notes, Discord, Zoom and WebRTC calls. It sounds excellent even at very low bitrates.

    Frequently asked questions

    How do I convert WEBM to OPUS on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your WEBM, make sure OPUS is selected and tap Convert. The OPUS file is saved to your Downloads.
    Will converting WEBM to OPUS reduce quality?
    Only the sound is kept — the picture is dropped, so the OPUS file is far smaller than the WEBM video. Phone videos usually carry AAC audio, so in Smart mode the OPUS is extracted instantly with zero quality loss.
    Can I convert only part of the WEBM?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this WEBM to OPUS converter free?
    Yes — completely free with no limits on the number of files, no watermark and no account. The site is supported by ads.
    Are my files uploaded to a server?
    No. The converter runs inside your browser using WebAssembly, so your files never leave your device. That's also why it works for private and confidential recordings.

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    Convert WEBM to other formats

    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 WEBAWEBM to WMAWEBM to AIFFWEBM to AC3WEBM to CAF

    Convert other formats to OPUS

    MP3 to OPUSM4A to OPUSM4R to OPUSAAC to OPUSALAC to OPUSWAV to OPUSFLAC to OPUSOGG to OPUSWEBA to OPUSWMA to OPUSAIFF to OPUSAC3 to OPUSCAF to OPUSAMR to OPUS3GA to OPUSAPE to OPUSMP4 to OPUSMOV to OPUSMKV to OPUSAVI to OPUSFLV to OPUSWMV to OPUS3GP to OPUSM4V to OPUSMPG to OPUSTS to OPUSGIF to OPUSMTS to OPUSVOB to OPUSHEVC to OPUSRMVB to OPUS

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