FLAC to AC3 Converter
Convert FLAC files to AC3 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 FLAC 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 FLAC to AC3
- Click "Choose files" or drag your FLAC files onto the page.
- Make sure "AC3" is selected as the output format (384 kbps is a good default).
- Optionally click Edit to trim, adjust volume or add effects.
- Click Convert, then Download your AC3 files.
Why convert FLAC to AC3?
AC3 files are typically 5-10x smaller than FLAC, making them ideal for phones, sharing and streaming.
AC3 is best for DVD authoring, home theatre and video production. DVD/Blu-ray players, AV receivers, smart TVs, VLC.
Will I lose quality?
AC3 is a lossy format, so some inaudible detail is removed to save space. At 384 kbps or higher most listeners cannot tell the difference from the original FLAC.
FLAC vs AC3
| FLAC | AC3 | |
|---|---|---|
| Full name | Free Lossless Audio Codec | Dolby Digital (AC-3) |
| Type | lossless | lossy |
| Best for | hi-fi music collections, archiving CDs and lossless streaming | DVD authoring, home theatre and video production |
| Typical size | ~5-6 MB at 16-bit / 44.1 kHz per minute | ~2.9 MB at 384 kbps per minute |
| Compatibility | Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers. | DVD/Blu-ray players, AV receivers, smart TVs, VLC. |
| Developed by | Xiph.Org Foundation (2001) | Dolby Laboratories (1991) |
FLAC to AC3: questions
How do I convert FLAC to AC3?
Open this page, add your FLAC file, make sure AC3 is selected as the output format and click Convert. Your AC3 file is ready to download in seconds.
Will converting FLAC to AC3 lose quality?
AC3 is a lossy format, so some inaudible detail is removed to save space. At 384 kbps or higher most listeners cannot tell the difference from the original FLAC.
Is this FLAC to AC3 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 FLAC files to AC3 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 FLAC and AC3?
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. AC3 (Dolby Digital (AC-3)) is a compressed (lossy) format: dolby Digital surround-sound audio used on DVDs, Blu-rays and TV broadcasts.
Does it work on Mac, Windows, iPhone and Android?
Yes. The FLAC to AC3 converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.