M4A to AIFF Audio Converter
Drop your M4A files — the AIFF 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 AIFF is one of the most common jobs people bring to a browser converter. Audio Interchange File Format — uncompressed PCM, Apple's WAV equivalent. Full fidelity, large files, rich metadata support. 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 M4A to AIFF?
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
M4A vs AIFF: how they compare
The numbers and capabilities at a glance, so you know what you're trading.
M4A
- Year released
- 2001
- Compression
- Lossy (AAC) or Lossless (ALAC)
- Lossless
- No
- Channels
- Multichannel
- Player support
- Apple ecosystem
- Best for
- Apple Music & iTunes downloads
AIFF
- Year released
- 1988
- Compression
- Uncompressed (PCM)
- Lossless
- Yes
- Channels
- Multichannel
- Player support
- Apple ecosystem
- Best for
- Editing & mastering on Mac
Heads up before converting to AIFF
What this specific conversion changes about your audio.
AIFF will not improve your M4A audio
Going from lossy M4A to lossless AIFF cannot recover detail that M4A already discarded. You get a much larger file with the same audible quality. This only makes sense for editing or archiving workflows that need a lossless container.
Best practices for AIFF
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.
- AIFF is lossless — ideal for editing or archiving. Expect files several times larger than an MP3 or AAC equivalent.
- Check that title, artist, album and cover art survived the conversion; some players cache old tags.
The importance of a good audio conversion
Why getting M4A → AIFF right matters more than you think.
Frequently asked
The basics everyone asks before dropping a track.
Convert M4A to other formats
Convert other formats to AIFF