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OGG to MP3

Turn OGG audio, such as Vorbis music, game sounds and voice messages, into MP3 files that play on every phone, car stereo and media player. Convert a whole batch at the bitrate you choose; titles, artists and cover art are kept, and nothing is uploaded.

MP3 quality

    Tip: most OGG music is Vorbis at about 112 to 192 kbps. Converting to a higher MP3 bitrate does not add quality, but 192 or 256 kbps keeps the result close to the original.

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    How to use the OGG to MP3

    1. Add your OGG files: drop them on the box or click Choose OGG files. You can add many at once.
    2. Pick the MP3 quality: 192 kbps suits most music, 128 kbps (or mono) is plenty for speech.
    3. Leave Keep tags ticked to copy the title, artist, album and cover into the MP3, and optionally change channels, sample rate or normalize the volume.
    4. Press Convert to MP3. Each file shows its progress and new size.
    5. Download each MP3, or press Download all (ZIP) to save the batch.

    OGG codecs and what they become in MP3

    An .ogg file is a container. The audio inside is almost always one of three codecs, and the tool shows which one each file uses next to its name:

    Codec in the OGG fileTypical useTypical bitrateGood MP3 setting
    Vorbis (lossy)Music, game audio, Wikimedia Commons96 to 320 kbps (quality 2 to 9)192 kbps, or 256 to 320 kbps for high-quality sources
    Opus (lossy)Voice messages, calls, podcasts, streaming16 to 128 kbps128 kbps for speech (mono is fine), 192 kbps for music
    FLAC (lossless)Archived musicAbout 600 to 1,100 kbps for CD audio256 or 320 kbps
    Speex (lossy, speech)Old voice recordings2 to 44 kbpsNot supported by browsers

    MP3 at a constant bitrate uses bitrate ÷ 8 bytes per second, so 192 kbps is 24,000 bytes per second or about 1.44 MB per minute, whatever the source. A 4-minute song at 192 kbps is about 5.8 MB.

    How OGG tags are copied

    OGG files store their metadata as Vorbis comments: simple FIELD=value pairs such as TITLE, ARTIST and ALBUM. MP3 players read ID3 tags instead. With Keep tags ticked, the converter maps the common fields to their ID3v2.3 frames:

    Vorbis commentID3 frame
    TITLE / ARTIST / ALBUMTIT2 / TPE1 / TALB
    ALBUMARTISTTPE2
    TRACKNUMBER (+ TRACKTOTAL) / DISCNUMBERTRCK (for example 3/12) / TPOS
    DATETYER (the 4-digit year)
    GENRE / COMPOSER / COMMENTTCON / TCOM / COMM
    METADATA_BLOCK_PICTURE (cover art)APIC (front cover)

    The text is written as UTF-16, so accented letters and non-Latin scripts display correctly in Windows Explorer, iTunes, Android and car stereos.

    Frequently asked questions

    How do I convert OGG to MP3 for free?

    Add your OGG files to this page, choose a bitrate such as 192 kbps and press Convert to MP3. Each file is decoded and re-encoded to MP3 in your browser, then you can download it or a ZIP of all files. There is no sign-up, watermark or upload.

    What is an OGG file?

    OGG is an open container format from the Xiph.Org Foundation. It usually holds Vorbis audio, but it can also contain Opus or FLAC audio. OGG is common in video games, Linux software, Wikimedia Commons and voice messages from some chat apps.

    Why convert OGG to MP3?

    Many car stereos, older MP3 players, Apple apps, video editors and smart speakers cannot play OGG files. MP3 plays on practically every device, so converting avoids compatibility problems.

    Does converting OGG to MP3 lose quality?

    Vorbis and MP3 are both lossy, so re-encoding loses a little detail. At 192 to 320 kbps the difference is very hard to hear. Choosing a bitrate higher than the source makes the file bigger without restoring lost detail.

    Are the song title, artist and cover art kept?

    Yes. With Keep tags ticked, the Vorbis comments in the OGG file (title, artist, album, album artist, track, disc, year, genre, composer and comment) and embedded cover art are written into an ID3v2.3 tag in the MP3.

    Why does my OGG file fail to convert?

    The file may be damaged, or it may contain Speex audio, which browsers cannot decode. Older Safari versions cannot read Ogg audio at all; Chrome, Edge and Firefox decode OGG Vorbis and Opus reliably.

    Are my files uploaded?

    No. The OGG file is decoded with your browser's Web Audio API and encoded with a JavaScript build of the LAME MP3 encoder, all on your device.

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