Opus to MP3 Converter
Drop in Opus files and get MP3 back in seconds, processed entirely on your device.
OPUS files (most other audio and video files work too). Files stay on your device.
How it works
- Choose your Opus file, or drop it on the page. You can add several files at once.
- Choose MP3 quality: a bitrate (128 to 320 kbps; 192 kbps is a common balance) or leave the default.
- Click Convert. Processing happens on your device and shows progress; you can cancel at any time.
- Preview the result and download the MP3 file. With several files, download them all as one ZIP.
About Opus to MP3 conversion
Opus (Opus audio, usually in an Ogg container) suits voice notes, podcasts, streaming and small files with high quality at low bitrates. MP3 (MPEG-1/2 Audio Layer III) suits music libraries, podcasts and sharing when you cannot know what the listener uses.
Both formats are lossy, so converting re-encodes the audio and costs a little quality each time. Keep your Opus original, and choose a MP3 bitrate at least as high as the source for the best result.
For a 4-minute track, a typical Opus file is about 3 MB and a typical MP3 file is about 6 MB. Your own result depends on the bitrate and the audio itself.
Opus vs MP3
MP3 support: Plays on virtually every phone, car stereo, TV, browser and media player made in the last 25 years.
Opus support: Supported in all current browsers and Android, and by Safari 17 and later on Apple platforms. Many older players cannot open it.
| Detail | Opus | MP3 |
|---|---|---|
| Type | Lossy | Lossy |
| Codec | Opus | MP3 |
| Typical bitrate | 6 to 510 kbps; 64 to 128 kbps is transparent for most music | 128 to 320 kbps; 192 kbps is a common balance |
| A 4-minute track | about 3 MB | about 6 MB |
| File extensions | .opus, .ogg | .mp3 |
| Best for | voice notes, podcasts, streaming and small files with high quality at low bitrates | music libraries, podcasts and sharing when you cannot know what the listener uses |
| Introduced | 2012 | 1993 |
Quality and compatibility notes
- MP3: Each re-encode loses a little more detail, and there is no true gapless support without extra tags.
- Opus: Not accepted by many older car stereos, portable players and some editing software.
- MP3 bitrate range: 128 to 320 kbps; 192 kbps is a common balance.
- Tags: MP3 stores ID3v1 and ID3v2 tags, including cover art.
Questions
Does converting Opus to MP3 reduce quality?
A little. Both Opus and MP3 are lossy, so converting re-encodes the audio. A high bitrate keeps the loss very small, and keeping your original avoids any permanent change.
How big will the MP3 file be?
For a 4-minute track, a typical Opus file is about 3 MB and a typical MP3 file is about 6 MB. Your own result depends on the bitrate and the audio itself.
Is my Opus file uploaded anywhere?
No. The conversion runs in your browser on your device. The file is never sent to a server, and nothing is stored after you close the page.