AIFF to MP3 converter
Turn AIFF files into MP3 in seconds, inside this tab. Nothing is uploaded.
- Runs on your device
- No upload
- No sign-up
- Free
Drop AIFF files here (any other format works too)
Stays on this device: nothing is uploaded. You can also drag a file here or paste it.
MP3: sharing, podcasts, car stereos, anything that must just play.
How to convert AIFF to MP3
- Choose your .aiff files or drop them on the box above. You can add several.
- MP3 is already selected. Leave the bitrate at 320 kbps or change it.
- Conversion starts straight away. Press Download next to each finished file, or Download all.
AIFF vs MP3
| AIFF | MP3 | |
|---|---|---|
| Full name | Audio Interchange File Format | MPEG-1 Audio Layer III |
| Type | lossless | lossy |
| Codec | Uncompressed PCM (big-endian) | MP3 (LAME encoder) |
| Size | 10.1 MB at 16-bit / 44.1 kHz stereo | 0.96 MB at 128 kbps, 2.4 MB at 320 kbps |
| Plays on | Mac, iPhone, most DAWs; awkward on Android | Everywhere: every phone, browser, car and media player made in the last 25 years |
AIFF. AIFF is Apple’s uncompressed format, the Mac equivalent of WAV. Logic, GarageBand exports and CD rips on Macs often use it.
MP3. MP3 throws away sound the ear is unlikely to notice, using a psychoacoustic model, so a song shrinks to roughly a tenth of its CD size.
What happens to quality
AIFF is lossless and MP3 is lossy, so the conversion discards some detail. At the default bitrate most listeners can’t hear the difference, and the file becomes far smaller. Hear the difference between lossless and MP3 yourself.
Related converters
Questions people ask
How do I convert AIFF to MP3 without uploading?
Choose or drop your .aiff file above. AudioKit converts it to MP3 inside your browser with ffmpeg.wasm and gives you a download. The file is never sent to a server, and you can convert several at once.
Will I lose quality converting AIFF to MP3?
AIFF is lossless and MP3 is lossy, so the conversion discards some detail. At the default bitrate most listeners can’t hear the difference, and the file becomes far smaller.
What bitrate should I choose for MP3?
320 kbps is a good default. Your AIFF is lossless, so a high bitrate like 256–320 kbps preserves the most. For voice recordings, 96–128 kbps is plenty.
Where does AIFF play and where does MP3?
AIFF: Mac, iPhone, most DAWs; awkward on Android. MP3: Everywhere: every phone, browser, car and media player made in the last 25 years.
Is this AIFF to MP3 converter safe?
It’s about as private as a converter can be: nothing is uploaded, there is no account and no installer. The page needs a modern browser with WebAssembly (any current Chrome, Edge, Firefox or Safari).