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Convert AVI to OPUS

Extract the audio from AVI 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 AVI to OPUS

    1. 1

      Tap Choose files and select one or more AVI 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.

    AVI vs OPUS

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

    AVIOPUS
    Full nameAudio Video InterleaveOpus Audio
    TypeVideoAudio
    CompressionLossyLossy
    Developed byMicrosoftIETF / Xiph.Org
    Introduced19922012
    Plays on iPhone✕ No◐ Partly / with an app
    Plays on Android◐ Partly / with an app✓ Yes
    Plays on Windows✓ Yes✓ Yes
    Plays on Mac◐ Partly / with an app✓ Yes

    About AVI and OPUS

    AVI: AVI is Microsoft's classic video format from the Windows 95 era. It is still used by older cameras, DVD players and Windows software.

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

    AVI to MP4AVI to MOVAVI to MKVAVI to WEBMAVI to FLVAVI to WMVAVI to 3GPAVI to M4VAVI to MPGAVI to TSAVI to GIFAVI to MP3AVI to M4AAVI to M4RAVI to AACAVI to ALACAVI to WAVAVI to FLACAVI to OGGAVI to WEBAAVI to WMAAVI to AIFFAVI to AC3AVI 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 OPUSWEBM 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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