FLAC to M4A Converter — Free, Online, No Upload

FLAC is ideal for archiving and audiophile playback, but it's a nonstarter on iPhones, iPads, and iOS-based devices. Apple's audio stack doesn't support FLAC natively in the Music app or standard iOS media player — if you try to add a FLAC file to iTunes or sync it to an iPhone, it simply won't appear. M4A (AAC in an MPEG-4 container) is Apple's native audio format and plays everywhere in the Apple ecosystem without any friction.

Converting FLAC to M4A bridges the lossless archive world and Apple's device ecosystem. This converter writes the M4A at 192 kbps AAC. Apple sells music at 256 kbps, and at 192 kbps most listeners still can't tell the M4A from the FLAC in normal listening. The file will be roughly 85% smaller than the FLAC source. The result syncs to iPhone and iPad, appears in iTunes with full album art and metadata, uploads to Apple Music for iCloud library sync, and works with CarPlay.

Because you're encoding from a lossless FLAC master, this is the cleanest possible M4A encode — no prior generation loss, no compounding of codec artifacts. Logic Pro, GarageBand, and all Apple audio tools treat M4A as a primary import format. For podcasters, M4A is widely accepted by Apple Podcasts, Spotify, and major podcast hosting platforms.

Typical sizes (3-minute song): FLAC 20–40 MB → M4A 3–6 MB.

M4A output is encoded at 192 kbps.

Going from lossless FLAC to lossy M4A removes detail you cannot get back — keep the original if you may need it.