Convert AAC to MP3
Convert AAC files to MP3 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 MP3
- Drop your .aac files above, or click Upload Files. You can add many files at once.
- MP3 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 .mp3 files as soon as each one finishes.
What to know about AAC to MP3 conversion
- You can choose the bitrate, sample rate and channels (mono, stereo or a 3D spatial effect).
AAC vs MP3
| Feature | AAC (Advanced Audio Coding) | MP3 (MPEG-1 Audio Layer III) |
|---|---|---|
| Compression | lossy | lossy |
| Best for | good quality at low bitrates for streaming | music libraries and playback on any device |
| Opens in | Apple devices, browsers and most media players | every phone, car stereo, browser and media player |
AAC (Advanced Audio Coding): A lossy digital audio compression format designed as the successor to MP3, offering higher sound quality at similar bitrates.
MP3 (MPEG-1 Audio Layer III): The most popular lossy audio compression format, which revolutionized digital music sharing.
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 MP3 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 MP3 to AAC.
Convert AAC to other formats
Convert other formats to MP3
- MP4 to MP3
- WAV to MP3
- MOV to MP3
- M4A to MP3
- FLAC to MP3
- WEBM to MP3
- MKV to MP3
- OGG to MP3
- OPUS to MP3
- AVI to MP3
- WMA to MP3
- AIFF to MP3
See every AAC converter and MP3 converter, or browse the full converter directory.