Convert ALAC to OPUS
ALAC is great for lossless music libraries on iPhone, iPad and Mac, but OPUS is the better choice for voice messages, calls and streaming at low bitrates. Convert ALAC 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 ALAC to OPUS
- 1
Tap Choose files and select one or more ALAC 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.
ALAC vs OPUS
OPUS uses lossy compression, which makes the file much smaller than ALAC. Choose High quality and the difference is inaudible for most listeners.
| ALAC | OPUS | |
|---|---|---|
| Full name | Apple Lossless Audio Codec | Opus Audio |
| Type | Audio | Audio |
| Compression | Lossless | Lossy |
| Developed by | Apple | IETF / Xiph.Org |
| Introduced | 2004 | 2012 |
| Plays on iPhone | ✓ Yes | ◐ Partly / with an app |
| Plays on Android | ◐ Partly / with an app | ✓ Yes |
| Plays on Windows | ◐ Partly / with an app | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About ALAC and OPUS
ALAC: ALAC is Apple's lossless format. It compresses audio to roughly half the size of WAV with zero quality loss and plays natively in Apple Music, iTunes and on every iPhone. It is saved with the .m4a extension.
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 ALAC to OPUS on my phone?
Will converting ALAC to OPUS reduce quality?
Is this ALAC to OPUS converter free?
Are my files uploaded to a server?
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