EN

Convert WEBM to AC3

Extract the audio from WEBM videos and save it as AC3 — ideal for home theatre and surround sound.

  • 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 AC3

    1. 1

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

    2. 2

      Check that AC3 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 AC3 downloads automatically. Converting several files? Grab them all as a ZIP.

    WEBM vs AC3

    Only the sound is kept — the picture is dropped, so the AC3 file is far smaller than the WEBM video.

    WEBMAC3
    Full nameWebM VideoDolby Digital (AC-3)
    TypeVideoAudio
    CompressionLossyLossy
    Developed byGoogleDolby Laboratories
    Introduced20101991
    Plays on iPhone◐ Partly / with an app◐ Partly / with an app
    Plays on Android✓ Yes◐ Partly / with an app
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac◐ Partly / with an app✓ Yes

    About WEBM and AC3

    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.

    AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.

    Frequently asked questions

    How do I convert WEBM to AC3 on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your WEBM, make sure AC3 is selected and tap Convert. The AC3 file is saved to your Downloads.
    Will converting WEBM to AC3 reduce quality?
    Only the sound is kept — the picture is dropped, so the AC3 file is far smaller than the WEBM video.
    Can I convert only part of the WEBM?
    Yes. Open Advanced options → Trim and enter a start and end time.
    Is this WEBM to AC3 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.

    Rate this tool

    Be the first to rate it.

    Convert WEBM to other formats

    Convert other formats to AC3

    Helpful tools