ALAC to AAC Audio Converter
Drop your ALAC files — the AAC audio is generated in your browser in seconds. Multiple files at once, no upload on the fast path.
9,214+ audio files converted
Need your audio as AAC? Drop the files and they are re-encoded right on this page — no install, no sign-up, no queue. Typical AAC output is ~1 MB/min @128 kbps, and the work happens locally so your audio stays on your machine.
Looking to programmatically convert ALAC to AAC?
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
ALAC vs AAC: how they compare
The numbers and capabilities at a glance, so you know what you're trading.
ALAC (Apple Lossless)
- Year released
- 2004
- Compression
- Lossless
- Lossless
- Yes
- Channels
- Multichannel
- Player support
- Apple ecosystem
- Best for
- Lossless libraries in Apple Music
AAC
- Year released
- 1997
- Compression
- Lossy
- Lossless
- No
- Channels
- Multichannel
- Player support
- Universal
- Best for
- Streaming & mobile
Heads up before converting to AAC
What this specific conversion changes about your audio.
Converting ALAC (Apple Lossless) to AAC discards audio data
ALAC (Apple Lossless) is lossless, but AAC is lossy — this conversion permanently throws away part of the signal to save space. Keep your ALAC (Apple Lossless) file as the master and use the AAC copy for sharing or playback.
Best practices for AAC
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 AAC, 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 AAC
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 ALAC (Apple Lossless) original and skip flattening it to AAC. Lossy targets are for delivery, not for archiving the source of truth.
The importance of a good audio conversion
Why getting ALAC → AAC right matters more than you think.
Frequently asked
The basics everyone asks before dropping a track.
Convert ALAC to other formats
Convert other formats to AAC