Convert AAC to MP3
Turn AAC files into MP3 in seconds. Up to five at a time, private and free.
1 · Choose your files
Drag & drop audio or video files here, or click to browse
Up to 5 AAC files, max 200 MB each
2 · Pick the output
All processing runs on your own device with ffmpeg compiled to WebAssembly; nothing is uploaded.
3 · Collect your files
Results appear here with a player. Download them one by one or grab everything as a ZIP.
How to convert AAC to MP3
- Drop your AAC files into the box above, or click it to browse.
- MP3 is already selected as the output. For lossy formats, 192 kbps is a good balance between size and quality.
- Click Convert to MP3, then download each result or grab them all as a ZIP.
About the AAC format
AAC (Advanced Audio Coding) is the lossy codec inside M4A files, Apple Music and most video streaming. A raw .aac file holds the same audio without the container, which some players and editors do not accept.
About the MP3 format
MP3 (MPEG-1 Audio Layer III) is the most widely supported audio format there is: every phone, car stereo, browser and player reads it. It is lossy, storing music at a fraction of the size of the original by removing detail the ear is least likely to notice. At 192 kbps or more it is transparent for most listeners.
Frequently asked questions
Why convert AAC to MP3?
MP3 plays on every device and player ever made, and keeps files small enough to send and store easily. Raw AAC files lack a container and metadata, so many players and editors refuse them.
Does converting AAC to MP3 lose quality?
MP3 uses lossy compression, so a little detail is discarded to make the file smaller. At 192 kbps or higher the difference is inaudible for most listeners; choose 320 kbps for the safest result.
Which bitrate should I choose?
192 kbps is transparent for most music and the default here. Use 320 kbps to archive or for critical listening, and 128 kbps for speech, where the difference is inaudible and the file is a third smaller.
Can I convert several AAC files at once?
Yes. Add up to 5 files of up to 200 MB each, convert them in one go and download the results one by one or as a ZIP.
Are my files uploaded?
No. The conversion runs in your browser with ffmpeg compiled to WebAssembly. Your AAC files never leave your device.
Is this AAC to MP3 converter free?
Yes, completely, with no sign-up and no watermark. The site is supported by ads.
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