Convert 3GA to OPUS
3GA is great for Samsung voice recorder files, but OPUS is the better choice for voice messages, calls and streaming at low bitrates. Convert 3GA to OPUS in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert 3GA to OPUS
- 1
Tap Choose files and select one or more 3GA files (or drag them in).
- 2
Check that OPUS is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your OPUS downloads automatically. Converting several files? Grab them all as a ZIP.
3GA vs OPUS
Both formats are lossy, so the audio is re-encoded once. Pick High quality to keep it as close to the original as possible, or Small for the smallest file.
| 3GA | OPUS | |
|---|---|---|
| Full name | 3GPP Audio | Opus Audio |
| Type | Audio | Audio |
| Compression | Lossy | Lossy |
| Developed by | 3GPP | IETF / Xiph.Org |
| Introduced | 2003 | 2012 |
| Plays on iPhone | ✕ No | ◐ Partly / with an app |
| Plays on Android | ✓ Yes | ✓ Yes |
| Plays on Windows | ✕ No | ✓ Yes |
| Plays on Mac | ✕ No | ✓ Yes |
About 3GA and OPUS
3GA: 3GA is the audio-only 3GPP format created by Samsung and other Android voice recorders. It usually contains AAC or AMR audio.
OPUS: Opus is a modern, highly efficient codec used by WhatsApp voice notes, Discord, Zoom and WebRTC calls. It sounds excellent even at very low bitrates.
Frequently asked questions
How do I convert 3GA to OPUS on my phone?
Will converting 3GA to OPUS reduce quality?
Is this 3GA to OPUS converter free?
Are my files uploaded to a server?
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