Convert OPUS to MP3 online
Free, no sign-up, no limits. Drop your OPUS files, get MP3 files back in seconds.
1 files converted so far
Drop your OPUS files here
or · multiple files accepted
Local conversion: your files never leave your device.
Why convert OPUS to MP3?
You received a WhatsApp, Telegram or Discord voice message (.opus/.ogg) and it will not open on your computer, car stereo or editing software. MP3 solves the problem.
How to do it, step by step
- Drop your OPUS fileinto the area at the top of the page (or several files at once). On mobile, tap the area and pick the file from your apps.
- Check the output format: MP3 is already selected. For music, 192 kbps is transparent for most listeners and 320 kbps gives the maximum. For voice (memos, podcasts, lectures), 128 kbps is more than enough and halves the file size.
- Start the conversion.The FFmpeg engine loads once (≈ 10 MB), then each file is processed in a few seconds without leaving your device.
- Download your MP3, directly or as a .zip if you converted several files. The name and metadata (title, artist, cover art) are preserved.
The OPUS format (Opus Interactive Audio Codec)
Opus is currently the most efficient audio codec: it delivers the best possible quality at very low bitrates. It is the format of WhatsApp, Telegram and Discord voice messages and of video calls. Excellent, but still poorly recognized by consumer players and car stereos.
- Exceptional quality at low bitrates
- Free format
- The standard for voice on the internet
- Very few devices play it
- Often impossible to open on Windows without extra software
The MP3 format (MPEG-1/2 Audio Layer III)
MP3 is the most universal audio format in the world. It plays on absolutely everything: car stereos, phones, TVs, game consoles, MP3 players, browsers, editing software. Its compression is slightly less efficient than AAC, but its total compatibility makes it the safe choice for sharing an audio file.
- Compatible with 100% of devices
- Small file size
- Patent-free since 2017
- Less efficient compression than AAC/Opus
- Irreversible quality loss at low bitrates
OPUS vs MP3 comparison
| OPUS | MP3 | |
|---|---|---|
| Compression | Lossy | Lossy |
| Typical size (1 min, music) | ≈ 0.7 MB | ≈ 1.4 MB (192k) |
| Common use | WhatsApp/Telegram voice messages, Discord, calls | podcasts, music, car stereos, portable players, email attachments |
| Metadata (title, cover art) | Yes | Yes |
Frequently asked questions
Does converting OPUS to MP3 lose quality?
MP3 is a lossy compressed format: a conversion always involves re-encoding. At 192 kbps or higher, the difference is inaudible in the vast majority of cases. Just avoid chaining several successive conversions.
Is the OPUS to MP3 converter free?
Yes, with no limit on the number of files, no sign-up and no watermark. Each file can be up to 200 MB.
Are my OPUS files uploaded to the internet?
No. The OPUS to MP3 conversion is performed by FFmpeg directly in your browser (WebAssembly). Your files never leave your computer or phone.
How do I convert OPUS to MP3 on iPhone or Android?
Open this page in Safari or Chrome, tap the drop area, select your OPUS file (from Files, Voice Memos, Downloads or WhatsApp), then tap "Convert". The MP3 downloads to your files.
Can I convert several OPUS files at once?
Yes, add all your files in one go. They are converted one after another and a button lets you download everything as a .zip archive.