OPUS to MP3 Converter

Free, no sign-up. Your files never leave your device.

Bitrate, kbps

192 kbps matches music streaming services, 320 is the maximum for MP3. Tags (title, artist, album) are kept; from a video only the audio is taken.

Usage statistics

We count page views and operations. A random cookie identifies a browser profile; after sign-in its activity is linked to your account. Your last IP and its observation date are visible only to the site owner and kept for up to 90 days. Daily counts are kept for 90 days, and inactive profiles are removed after 90 days. Formats, outcomes, error codes, and size and time ranges are counted separately. File names, contents and metadata stay on your device. Turning this off deletes the current browser profile.

How to convert OPUS to MP3

  1. Click the box above or drag your OPUS files onto it — you can add many at once.
  2. Wait while your browser re-encodes the audio — nothing gets uploaded. Progress is shown as a percentage.
  3. Download each MP3 separately or grab them all in one ZIP file.

Why use this converter

  • Your files stay with you

    Conversion runs on your device. Recordings are never uploaded, so nobody but you can hear them.

  • MP3 at the bitrate you choose

    MP3 is encoded with LAME, the encoder most audio apps use. Choose 128, 192, 256 or 320 kbps.

  • Tags are kept

    Title, artist, album and other tags are carried over to the new file.

  • Many files at once

    Add up to 100 files at a time and download the results as one ZIP.

Frequently asked questions

What is Opus?

Opus is a modern codec for speech and music. WhatsApp and Telegram voice messages, calls and the audio of many online videos use it. Not every player or app opens .opus files, while MP3 works everywhere.

Do WhatsApp voice messages work?

Yes. Voice messages saved or shared from WhatsApp are Opus files, and the converter reads them. For speech, 128 kbps is plenty.

Why is the MP3 bigger than the original?

Opus compresses speech far more efficiently than MP3, so a voice message takes more space as an MP3 at comparable quality. That's expected.

Which bitrate should I pick?

192 kbps is a good choice for music and matches what streaming services use. 320 kbps is the maximum for MP3: slightly better quality, bigger file. For speech, podcasts and lectures, 128 kbps is plenty.

Are the title and artist kept?

Yes. The tags of the original file — title, artist, album and others — are copied to the new file.

How many files can I convert at once?

Up to 100 files per batch. Download them one by one or all together in a single ZIP file.

Is it safe?

Yes. Only the converter itself is loaded from the site; your recordings are processed in your browser and never sent to a server.

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  • FLAC → MP3

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