Quick answer: To convert OGG or Opus to MP3, add the files and press Convert to MP3. The default 128 kbps suits voice notes and speech; pick 192 kbps or more for music. Everything is decoded and encoded in your browser, so private voice messages are never uploaded.
OGG and Opus files come from voice messages, games, Linux apps and web recordings, and many players, cars and editors refuse them. Turn them into MP3 here, several at once.
OGG to MP3 at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | OGG · OPUS |
| Largest file | 1 GB per file, several files at once |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to convert OGG to MP3
- Choose the .ogg, .oga or .opus files.
- Keep 128 kbps for speech and voice notes, or pick 192 or 256 kbps for music.
- Press Convert to MP3.
- Download the MP3s, as a ZIP if there are several.
OGG, Vorbis and Opus
OGG is a container, like a box. Inside is usually one of two codecs: Vorbis, an older music codec used by many games and Linux apps, or Opus, the modern codec behind voice messages and internet calls. Files ending in .opus are Opus in an OGG box. This page reads both and writes a standard MP3.
Voice messages
Voice notes exported or saved from messaging apps are often .opus or .ogg files that a computer or an older phone will not play. They are recorded at a low bitrate for speech, so 128 kbps MP3 keeps everything that is there; a higher bitrate only makes the file bigger. The conversion runs on your device, which matters for personal messages.
Browser support
Current Chrome, Edge and Firefox decode OGG Vorbis and Opus on every system. Safari has added support over recent versions; if yours cannot read a file, the page tells you instead of producing a silent MP3, and Chrome or Firefox will work. For other formats, see Convert audio.
How this compares
| This tool | Online converters (e.g. Online Audio Converter, Clideo or CloudConvert) | Desktop apps (e.g. Audacity) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More audio tools.
Frequently asked questions
How do I convert an Opus voice note to MP3?
Save the voice note as a file, choose it here and press Convert to MP3. 128 kbps is plenty for speech.
Which bitrate should I pick?
128 kbps for voice and podcasts, 192 kbps for most music, 256 or 320 kbps if the OGG was high quality to begin with.
Does converting OGG to MP3 lose quality?
Both are lossy formats, so a little is lost in the conversion. At 192 kbps or more for music it is not audible to most listeners.
Are my files uploaded?
No. They are converted in your browser on your device.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free