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Convert WEBM to AAC

Extract the audio from WEBM videos and save it as AAC — ideal for efficient music files and broadcast audio.

  • 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 AAC

    1. 1

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

    2. 2

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

    WEBM vs AAC

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

    WEBMAAC
    Full nameWebM VideoAdvanced Audio Coding (raw ADTS)
    TypeVideoAudio
    CompressionLossyLossy
    Developed byGoogleMPEG
    Introduced20101997
    Plays on iPhone◐ Partly / with an app✓ Yes
    Plays on Android✓ Yes✓ Yes
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac◐ Partly / with an app✓ Yes

    About WEBM and AAC

    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.

    AAC: AAC is the successor to MP3 and the audio codec behind YouTube, iTunes and most streaming services. A .aac file stores the raw AAC stream without an MP4 wrapper.

    Frequently asked questions

    How do I convert WEBM to AAC on my phone?
    Open this page in your phone's browser (Safari, Chrome, Samsung Internet), tap Choose files, pick your WEBM, make sure AAC is selected and tap Convert. The AAC file is saved to your Downloads.
    Will converting WEBM to AAC reduce quality?
    Only the sound is kept — the picture is dropped, so the AAC 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 AAC 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 ALACWEBM to WAVWEBM to FLACWEBM to OGGWEBM to OPUSWEBM to WEBAWEBM to WMAWEBM to AIFFWEBM to AC3WEBM to CAF

    Convert other formats to AAC

    MP3 to AACM4A to AACM4R to AACALAC to AACWAV to AACFLAC to AACOGG to AACOPUS to AACWEBA to AACWMA to AACAIFF to AACAC3 to AACCAF to AACAMR to AAC3GA to AACAPE to AACMP4 to AACMOV to AACMKV to AACAVI to AACFLV to AACWMV to AAC3GP to AACM4V to AACMPG to AACTS to AACGIF to AACMTS to AACVOB to AACHEVC to AACRMVB to AAC

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