Convert OPUS to FLAC
OPUS is great for voice messages, calls and streaming at low bitrates, but FLAC is the better choice for archiving CDs and hi-res music without quality loss. Convert OPUS to FLAC 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 OPUS to FLAC
- 1
Tap Choose files and select one or more OPUS files (or drag them in).
- 2
Check that FLAC 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 FLAC downloads automatically. Converting several files? Grab them all as a ZIP.
OPUS vs FLAC
FLAC is lossless, but it can't restore detail already removed by OPUS's compression — the file just gets bigger. Convert when an app or editor requires FLAC.
| OPUS | FLAC | |
|---|---|---|
| Full name | Opus Audio | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | IETF / Xiph.Org | Xiph.Org |
| Introduced | 2012 | 2001 |
| Plays on iPhone | ◐ Partly / with an app | ✓ Yes |
| Plays on Android | ✓ Yes | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About OPUS and FLAC
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.
FLAC: FLAC is an open lossless format that shrinks audio to 50–60% of WAV size without losing any quality. It is the favourite format of audiophiles and hi-res music stores.
Frequently asked questions
How do I convert OPUS to FLAC on my phone?
Will converting OPUS to FLAC reduce quality?
Is this OPUS to FLAC converter free?
Are my files uploaded to a server?
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