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Convert OPUS to AAC

Counter OPUS → AAC
Drop your files here .opus

    Most music players, car stereos and editors cannot open the .opus voice notes saved from WhatsApp. AAC delivers better sound than MP3 at the same bitrate.

    • Free
    • No sign-up
    • Batch conversion

    Why convert OPUS to AAC?

    To convert OPUS files to AAC, drop them on the counter above.

    Most files convert in seconds: no queue, no email address, and the AAC result saves straight to your computer or phone.

    How to convert OPUS to AAC

    1. Add your OPUS files

      Drag your OPUS files onto the counter or pick them with Choose files. You can add several at once.

    2. Check the settings

      The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.

    3. Conversion starts by itself

      Each file is converted to AAC and its row is stamped CONVERTED.

    4. Download your AAC file

      Get the file with Download. With several files you can download them all as one ZIP.

    OPUS vs AAC

    PropertyOPUSAAC
    Full nameOpus Interactive Audio CodecAdvanced Audio Coding
    TypeAudioAudio
    CompressionLossyLossy
    Created byIETF (RFC 6716)MPEG
    Year20121997
    Extensions.opus.aac .adts
    MIMEaudio/opusaudio/aac

    About the formats

    OPUS

    Opus Interactive Audio Codec

    Opus is an open audio codec for speech and music with very low latency. WhatsApp voice notes are saved as .opus files.

    All OPUS conversions

    AAC

    Advanced Audio Coding

    AAC is the lossy audio codec developed as the successor to MP3. YouTube, Apple and streaming services use it; .aac files are a raw AAC stream.

    All AAC conversions

    Frequently asked questions

    Is converting OPUS to AAC free?

    Yes, completely free. No account, no daily limit, no watermark and no queue.

    Does it work on a phone?

    Yes. It works on iPhone, iPad and Android, with no app to install.

    Is there a file size limit?

    There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.

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