AC3 to FLAC Converter
Convert AC3 files to FLAC in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop AC3 files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert AC3 to FLAC
- Click "Choose files" or drag your AC3 files onto the page.
- Make sure "FLAC" is selected as the output format.
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your FLAC files.
Why convert AC3 to FLAC?
FLAC is lossless, so further editing and re-saving won't reduce quality any more. (It can't restore detail that AC3 compression already removed.)
FLAC is best for hi-fi music collections, archiving CDs and lossless streaming. Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers.
Will I lose quality?
Converting AC3 to FLAC keeps all the quality that is in your AC3 file - nothing more is lost. However, it cannot recover detail removed when the AC3 was originally created, and the FLAC file will be larger.
AC3 vs FLAC
| AC3 | FLAC | |
|---|---|---|
| Full name | Dolby Digital (AC-3) | Free Lossless Audio Codec |
| Type | lossy | lossless |
| Best for | DVD authoring, home theatre and video production | hi-fi music collections, archiving CDs and lossless streaming |
| Typical size | ~2.9 MB at 384 kbps per minute | ~5-6 MB at 16-bit / 44.1 kHz per minute |
| Compatibility | DVD/Blu-ray players, AV receivers, smart TVs, VLC. | Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers. |
| Developed by | Dolby Laboratories (1991) | Xiph.Org Foundation (2001) |
AC3 to FLAC: questions
How do I convert AC3 to FLAC?
Open this page, add your AC3 file, make sure FLAC is selected as the output format and click Convert. Your FLAC file is ready to download in seconds.
Will converting AC3 to FLAC lose quality?
Converting AC3 to FLAC keeps all the quality that is in your AC3 file - nothing more is lost. However, it cannot recover detail removed when the AC3 was originally created, and the FLAC file will be larger.
Is this AC3 to FLAC converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many AC3 files to FLAC at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between AC3 and FLAC?
AC3 (Dolby Digital (AC-3)) is a compressed (lossy) format, dolby Digital surround-sound audio used on DVDs, Blu-rays and TV broadcasts. FLAC (Free Lossless Audio Codec) is a lossless format: lossless compression that shrinks audio to roughly 50-60% of WAV size without losing a single bit of quality.
Does it work on Mac, Windows, iPhone and Android?
Yes. The AC3 to FLAC converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.