Convert ALAC to AAC

Tested on Windows 11, 24 October 2026

Convert ALAC audio to AAC in your browser or in the Filoshi app for Windows. AAC is lossy: Filoshi uses a high-quality setting, and you can choose the bitrate. Nothing is uploaded.

Get Filoshi · $29Many files at once, no size limit, on Windows.

How to convert ALAC to AAC in your browser

  1. 1
    Drop your ALAC file
    Drag it onto Filoshi above, or press Choose your ALAC file to pick it on your computer.
  2. 2
    Filoshi converts it
    AAC is chosen already. FFmpeg, compiled to WebAssembly, converts it inside this browser tab.
  3. 3
    Save your AAC file
    Download it when it is ready. Nothing was sent to a server.
Source format

What is ALAC?

Apple Lossless Audio Codec (.alac). ALAC is Apple's lossless codec: like FLAC it decodes to exactly the original audio, at roughly half the size of WAV. Apple released it as open source in 2011; iTunes, Apple Music and iPhones play it natively.

Common use: Lossless music on Apple devices

Output format

What is AAC?

Advanced Audio Coding (.aac). AAC is the lossy codec designed to replace MP3, with better sound at the same bitrate. It is the audio of most MP4 videos, YouTube and Apple devices. Raw .aac files are a bare AAC stream without the M4A container.

Common use: Streaming, the sound track of MP4 video, Apple devices

Questions about ALAC to AAC

Is converting ALAC to AAC free?
Yes, one file at a time: the converter on this page runs in your browser, files up to 100 MB, no sign-up. The Filoshi desktop app ($29 once, for Windows) converts many files at once and has no size limit.
Does converting ALAC to AAC lose quality?
Yes, a little. AAC is a lossy format, so some detail is thrown away when the file is saved. Filoshi uses a high-quality setting by default, and you can choose the bitrate in the file viewer.
Is my ALAC file uploaded anywhere?
No. The converter on this page runs in your browser with FFmpeg compiled to WebAssembly; your ALAC file is read and converted on your device and never sent to a server. The desktop app works the same way, offline.
Has ALAC to AAC been tested?
Yes. ALAC to AAC is one of the 1,841 conversions that passed Filoshi's automated test matrix on Windows 11.
Can I convert many ALAC files at once?
Yes, in the desktop app. Drop as many ALAC files as you like on the window, pick AAC once for all of them, and each file shows its own progress. The new files appear next to the originals, which are never changed.

Related conversions

Other ALAC conversions

ALAC to MP3ALAC to OGGALAC to FLACALAC to M4AALAC to OPUSALAC to AIFFALAC to AC3ALAC to AU

Convert to AAC

MP3 to AACWAV to AACOGG to AACFLAC to AACM4A to AACWMA to AACOPUS to AACAIFF to AAC

Need ALAC to AAC for many files?

The browser converter handles one file at a time. The Filoshi app for Windows converts as many as you drop, runs offline, and has 1,841 tested conversions.

Get Filoshi · $29