How to Change Opus to MP3 on Android
Opus is a modern lossy codec made for speech and streaming, and voice notes saved from messaging apps are often .opus files. Drop your Opus below to save it as an MP3, trimming it on the waveform first if you want. It all happens on your Android phone.
Drop an audio file here
MP3, WAV, M4A, OGG, FLAC… · nothing is uploaded
Trimmed on your device. Your audio is never uploaded.
The steps: Change Opus to MP3 on Android
- 1
Open this page in Chrome (or another browser) on your Android phone or tablet.
- 2
Tap the box above. Android's file picker opens – look under Images, Recent or Browse to reach Gallery, Downloads or Google Drive.
- 3
The full track is selected to start with. Only drag the waveform handles if you want to shorten it.
- 4
Pick MP3 as the format (it's selected already), then download. Tap Download. The file goes into your Download folder – open it from Files by Google or Chrome's downloads list.
What changes going from Opus to MP3
- Your MP3 is encoded at 192 kbps – for most listening you can't tell it from the original, and it takes about 1.4 MB per minute.
Opus and MP3 in brief
- Opus is a modern lossy codec made for speech and streaming, and voice notes saved from messaging apps are often .opus files. Many players and editors still can't open it.
- MP3 is the audio format that plays on every phone, car stereo, speaker, editor and website. It's lossy, which keeps files small.
Android phone tips
- Once converted audio is in Downloads, music apps can see it. To make an MP3 your ringtone, add it under Settings › Sound › Ringtone › (+).
- Skipping a Play Store app means no extra permissions, no in-app ads and no storage used up.
- Decoding uses your browser's own audio support. If one browser can't open the file, try Chrome or Firefox.
Opus vs MP3
| Opus | MP3 | |
|---|---|---|
| Compression | Lossy, very efficient for voice | Lossy |
| Ideal for | Voice notes, calls and streaming | Music, ringtones and anything that has to play everywhere |
| Works on | Modern browsers; limited in players and editors | Everywhere |
Questions & answers
Will Opus to MP3 make it sound worse?
Very slightly, since MP3 is lossy, but at 192 kbps the difference is extremely hard to hear.
Can I trim the audio while I'm at it?
Yes. Drag the start and end handles on the waveform, play it back, and add a fade in or fade out if you like.
Do my recordings get sent anywhere?
No. Your browser does the conversion with your device's own processor, so your recordings stay with you. Once the page has loaded you could even switch off your internet connection.
Where do I find the converted file on my Android phone?
Tap Download. The file goes into your Download folder – open it from Files by Google or Chrome's downloads list.
Need more options? Open the full Audio Trimmer tool →