Convert AAC to AC3
Convert AAC files to AC3 locally, completely free and with maximum privacy.
Drag and drop your files here
or click to browse local files (large files supported, limited only by browser RAM)
Upload FilesPlatform Statistics
How to convert AAC to AC3
- Drop your .aac files above, or click Upload Files. You can add many files at once.
- AC3 is already selected as the output. Open the settings (gear icon) to fine-tune the result.
- Click Convert All. FFmpeg runs inside your browser through WebAssembly; nothing is uploaded.
- Download your .ac3 files as soon as each one finishes.
What to know about AAC to AC3 conversion
- You can choose the bitrate, sample rate and channels (mono, stereo or a 3D spatial effect).
AAC vs AC3
| Feature | AAC (Advanced Audio Coding) | AC3 (Dolby Digital (AC-3)) |
|---|---|---|
| Compression | lossy | lossy |
| Best for | good quality at low bitrates for streaming | surround sound on DVDs and home theaters |
| Opens in | Apple devices, browsers and most media players | VLC, mpv and most media players, AV receivers and video editors |
AAC (Advanced Audio Coding): A lossy digital audio compression format designed as the successor to MP3, offering higher sound quality at similar bitrates.
AC3 (Dolby Digital (AC-3)): A surround sound audio codec used on DVDs, Blu-ray discs, and digital television.
Conversion options
- Bitrate from 96 to 320 kbps
- Sample rate: 22.05, 44.1 or 48 kHz
- Mono, stereo or 3D spatial audio
- Playback speed (0.5× to 2×)
Frequently asked questions
Is it safe to convert AAC to AC3 here?
Yes. Your files are processed entirely on your own device by WebAssembly code running in the browser. They are never uploaded, so nobody else can see them, and the converter keeps working even if your connection drops after the page loads.
Is there a file size limit?
There is no server-side limit. The only limit is the memory available to your browser, typically 1.5–4 GB on desktop computers.
Can I convert several AAC files at once?
Yes. Add as many files as you like; they are converted in parallel according to your device's CPU cores, and you can apply the same settings to all of them.
Related conversions
Need the opposite? Convert AC3 to AAC.
Convert AAC to other formats
Convert other formats to AC3
- MP4 to AC3
- MP3 to AC3
- WAV to AC3
- MOV to AC3
- M4A to AC3
- FLAC to AC3
- WEBM to AC3
- MKV to AC3
- OGG to AC3
- OPUS to AC3
- AVI to AC3
- WMA to AC3
See every AAC converter and AC3 converter, or browse the full converter directory.