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Convert FLAC to OPUS

Counter FLAC → OPUS
Drop your files here .flac

    FLAC is lossless but 3-5 times larger than MP3, and phones and cars do not always play it. Opus gives the best quality at low bitrates and is very efficient for speech.

    • Free
    • No sign-up
    • Batch conversion

    Why convert FLAC to OPUS?

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

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

    How to convert FLAC to OPUS

    1. Add your FLAC files

      Drag your FLAC 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 OPUS and its row is stamped CONVERTED.

    4. Download your OPUS file

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

    FLAC vs OPUS

    PropertyFLACOPUS
    Full nameFree Lossless Audio CodecOpus Interactive Audio Codec
    TypeAudioAudio
    CompressionLosslessLossy
    Created byXiph.Org FoundationIETF (RFC 6716)
    Year20012012
    Extensions.flac.opus
    MIMEaudio/flacaudio/opus

    About the formats

    FLAC

    Free Lossless Audio Codec

    FLAC is an open format that compresses audio to roughly half size without losing any quality. Music archivists and hi-fi listeners prefer it.

    All FLAC conversions

    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

    Frequently asked questions

    Is converting FLAC to OPUS 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.

    Other conversions
    Family Give → Get What you gain
    OPUS FLAC lossless at half size · larger file
    FLAC MP3 plays on every device · smaller file
    FLAC WAV lossless, ready to edit
    FLAC M4A better than MP3 at the same size · smaller file
    FLAC AAC broadcast-grade audio · smaller file
    FLAC OGG open and royalty-free · smaller file
    MP3 OPUS most efficient for speech · MP3 recording
    WAV OPUS most efficient for speech · smaller file
    M4A OPUS most efficient for speech · iPhone voice memo
    AAC OPUS most efficient for speech · raw AAC stream
    OGG OPUS most efficient for speech · Telegram voice message
    WMA OPUS most efficient for speech · old Windows Media audio