Convert FLAC to AC3
FLAC is great for archiving CDs and hi-res music without quality loss, but AC3 is the better choice for home theatre and surround sound. Convert FLAC to AC3 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 FLAC to AC3
- 1
Tap Choose files and select one or more FLAC files (or drag them in).
- 2
Check that AC3 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 AC3 downloads automatically. Converting several files? Grab them all as a ZIP.
FLAC vs AC3
AC3 uses lossy compression, which makes the file much smaller than FLAC. Choose High quality and the difference is inaudible for most listeners.
| FLAC | AC3 | |
|---|---|---|
| Full name | Free Lossless Audio Codec | Dolby Digital (AC-3) |
| Type | Audio | Audio |
| Compression | Lossless | Lossy |
| Developed by | Xiph.Org | Dolby Laboratories |
| Introduced | 2001 | 1991 |
| Plays on iPhone | ✓ Yes | ◐ Partly / with an app |
| Plays on Android | ✓ Yes | ◐ Partly / with an app |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About FLAC and AC3
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.
AC3: AC3 is Dolby Digital surround sound, used on DVDs, Blu-rays and TV broadcasts. It supports up to 5.1 channels.
Frequently asked questions
How do I convert FLAC to AC3 on my phone?
Will converting FLAC to AC3 reduce quality?
Is this FLAC to AC3 converter free?
Are my files uploaded to a server?
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