Convert AC3 to FLAC
AC3 is great for home theatre and surround sound, but FLAC is the better choice for archiving CDs and hi-res music without quality loss. Convert AC3 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 AC3 to FLAC
- 1
Tap Choose files and select one or more AC3 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.
AC3 vs FLAC
FLAC is lossless, but it can't restore detail already removed by AC3's compression — the file just gets bigger. Convert when an app or editor requires FLAC.
| AC3 | FLAC | |
|---|---|---|
| Full name | Dolby Digital (AC-3) | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | Dolby Laboratories | Xiph.Org |
| Introduced | 1991 | 2001 |
| Plays on iPhone | ◐ Partly / with an app | ✓ Yes |
| Plays on Android | ◐ Partly / with an app | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About AC3 and FLAC
AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.
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 AC3 to FLAC on my phone?
Will converting AC3 to FLAC reduce quality?
Is this AC3 to FLAC converter free?
Are my files uploaded to a server?
Rate this tool
Be the first to rate it.
Thanks for rating! ❤️