ConvertWhat happens when you convert MP3 to AIFF
- AIFF is lossless, so nothing more is lost, but quality already removed by MP3 compression doesn't come back. Files are much bigger.
- AIFF files are saved as 16-bit audio, the same quality as a CD.
- Mono and stereo are kept (or choose either); surround sound is mixed down to stereo.
- Tags such as title, artist and cover art aren't copied yet.
MP3 vs AIFF
| Feature | MP3 | AIFF |
|---|---|---|
| Compression | Lossy | None (uncompressed) |
| Size per minute | 1.4 MB | 10 MB |
| Plays on | Almost everything | Apple devices, most players |
| Best for | Music, sharing, any player | Music production, Mac audio |
How to convert MP3 to AIFF
- Drop your MP3 files on the box above, or click it to choose files. You can add many at once.
- Adjust the options if you want. The defaults work well for most files.
- Click Download for each AIFF file, or "Download all" to get a ZIP.
Frequently asked questions
Is it safe to convert my files here?
Yes. Conversion happens entirely in your browser. Your files are never uploaded to a server, so nobody else can see them.
Is it free? Are there limits?
It's completely free, with no sign-up, watermarks or daily limits. The only limit is your device's memory for very large files.
Can I convert many MP3 files at once?
Yes. Drop as many files as you like; they're converted one after another and you can download them all as a ZIP.
Will converting MP3 to AIFF reduce quality?
No. AIFF is lossless, so nothing more is lost. It can't restore detail that MP3 compression already removed.
Why is the AIFF file so much bigger than the MP3?
MP3 uses lossy compression to keep files small. AIFF stores the audio without that compression, so it needs more space.
Are tags and cover art kept?
Not yet. The sound is converted, but title, artist and album art aren't copied.