FLAC → M4A, in your browser
Your lossless library, made playable on iPhones and everything else, at 256 kbps AAC.
Runs in your browser. Your file never leaves your computer.
- Plays oniPhone, iPad, Mac, and the rest
- QualityNear-transparent from lossless source
- Typical sizeAbout a third of the FLAC
- Our default256 kbps AAC
A FLAC library and an iPhone have never been natural friends: Apple's players historically skip FLAC, and third-party apps are a workaround, not a fix. M4A is the native answer. Encoding from lossless FLAC source gives AAC its best possible input, and at 256 kbps the result is practically indistinguishable while dropping to a third of the FLAC's size. Files convert one at a time here, or as a batch on Pro, all locally.
Questions
Why do iPhones dislike FLAC?
Apple backed its own lossless format and AAC for lossy audio, so FLAC support stayed grudging. M4A files play in every Apple app without discussion.
Should I convert my whole library?
Keep the FLACs as your archive and generate M4As for devices. Lossless originals mean you can re-encode to any future format for free.
Is 256 kbps enough from a lossless source?
For listening, yes, and encoding from FLAC avoids the stacked-loss problem of converting one lossy file to another.
Where does the conversion run?
In your browser. Files and results stay on your machine.
Related conversions
- M4A to FLACOnly for one honest reason: a workflow that wants lossless input files. No quality returns; the page is upfront about that.
- FLAC to MP3From archive copy to everyday copy: 320 kbps MP3 encoded from lossless source, the best MP3 can be.
- FLAC to WAVUncompressed PCM for the editor, burner or instrument that refuses FLAC. Same sound, bigger file, zero decoding surprises.
- FLAC to OGGOpus from lossless source: transparent files small enough for a phone full of albums, if your players cooperate.
- WAV to M4AAAC at 256 kbps: better sound per megabyte than MP3, native on every Apple device, fine everywhere else.
- AIFF to M4AFrom a studio-size file to a share-size one: AAC at 256 kbps, native on the Apple gear the AIFF came from.
- MP3 to M4AWhen a workflow or app insists on M4A. Honest note: this cannot make the MP3 sound better, only fit better.
Part of convert audio files in your browser. Every other conversion is on the conversions index.