AIFF to MP3 Audio Converter
Drop your AIFF files — the MP3 audio is generated in your browser in seconds. Multiple files at once, no upload on the fast path.
9,214+ audio files converted
Converting audio to MP3 is one of the most common jobs people bring to a browser converter. Lossy audio format that compresses sound by discarding detail the ear barely notices. The universal standard — playable on virtually every device made in the last 25 years. Because everything here runs locally with WebAssembly, your files never leave your device — there is no upload, no account, and no daily limit on the fast path.
Looking to programmatically convert AIFF to MP3?
Same engine, available as a JSON API. Drop a file or URL via REST and get the converted audio back — no browser, no UI, no rate limits on paid tiers.
Fast response on common audio pairs
Webhook delivery for batch jobs
Dozens of audio format pairs supported
AIFF vs MP3: how they compare
The numbers and capabilities at a glance, so you know what you're trading.
AIFF
- Year released
- 1988
- Compression
- Uncompressed (PCM)
- Lossless
- Yes
- Channels
- Multichannel
- Player support
- Apple ecosystem
- Best for
- Editing & mastering on Mac
MP3
- Year released
- 1993
- Compression
- Lossy
- Lossless
- No
- Channels
- Up to 2 (stereo)
- Player support
- Universal
- Best for
- Music & podcasts everywhere
Heads up before converting to MP3
What this specific conversion changes about your audio.
Converting AIFF to MP3 discards audio data
AIFF is lossless, but MP3 is lossy — this conversion permanently throws away part of the signal to save space. Keep your AIFF file as the master and use the MP3 copy for sharing or playback.
Best practices for MP3
Small choices that keep your output sounding right.
- Play the first converted file before batch-converting the rest, so you catch a wrong setting early.
- For MP3, choose a bitrate that fits the use: 192–256 kbps keeps most music transparent, 320 kbps for archival-grade lossy.
- Check that title, artist, album and cover art survived the conversion; some players cache old tags.
When NOT to convert to MP3
Cases where a different format serves you better.
When you need an editable master
If you might re-edit or re-export later, keep the lossless AIFF original and skip flattening it to MP3. Lossy targets are for delivery, not for archiving the source of truth.
The importance of a good audio conversion
Why getting AIFF → MP3 right matters more than you think.
Frequently asked
The basics everyone asks before dropping a track.
Convert AIFF to other formats
Convert other formats to MP3