Sada Files
  1. 1
  2. 2
  3. 3

Upload files

Add files from your device to get started

Drop your files here

Drag & drop, paste, or click to select files for AAC to FLAC.

Or drag and drop up to 500 files here

AACFILE

AAC to FLAC online, free

Convert AAC files to FLAC with Convert Audio. MP3, WAV, FLAC, AAC, OGG, M4A — any to any, with bitrate control.

  • Encrypted server job — auto-deleted in 24 h
  • Free, no sign-up, no watermark
  • MP3
  • WAV
  • FLAC
  • AAC
  • OGG
  • M4A

How to use AAC to FLAC

  1. 1

    Add your MP3, WAV and FLAC files

    Drop one or more files on the page, paste it, or click Select Files.

  2. 2

    Fine-tune the settings

    Set format in the Fine-tune panel, or keep the defaults — they suit most files.

  3. 3

    Run AAC to FLAC

    Press the start button. The file is processed on an encrypted, auto-deleting server job.

  4. 4

    Download the result

    Save the finished file, or continue with another tool without downloading in between.

What Convert Audio can do

  • Format: mp3, wav, flac, aac, ogg and m4a
  • Encrypted server processing; files are deleted automatically within 24 hours
  • Batch processing — up to 500 files at once
  • Free with no sign-up, no watermark and no daily limit

Popular Convert Audio shortcuts

Convert Audio — frequently asked questions

Is Convert Audio really free?

Yes. Convert Audio is free forever on Sada Files — no ads, no premium tier, no watermark, no daily cap that pushes you to pay. Every option on this page is available to everyone.

Do I need to sign up or create an account?

No. There is no account system at Sada Files. Open the page, drop your file, pick your options and save the result. History and saved workflows stay on your device.

What happens to my file?

Convert Audio needs server processing. Your file is encrypted with a key unique to the job, kept in an ephemeral store for at most 24 hours so you can re-download or continue a workflow, and then deleted automatically. You can press Delete now at any time.

Which formats does Convert Audio accept?

Convert Audio accepts MP3, WAV, FLAC, AAC, OGG and M4A. Files are identified by their content, not their extension, so a mislabelled file still works.

Is there a file size or file count limit?

No limit designed to upsell you. Server-assisted jobs accept files up to 2 GB each with fair-use rate limits only; self-host Sada Files for unlimited use.

Can I chain Convert Audio with other tools?

Yes. After every result a Continue with… menu lists every tool that accepts this output, and the file is handed over in memory. Save the chain as a workflow and re-run it on hundreds of files, or call it in one API request.

Does Convert Audio work on my phone?

Yes. The web app works on Android and iOS browsers, and the free Sada Files app for Android, iOS, Windows, Linux and macOS runs Convert Audio fully offline.

Related tools

All Audio & Video Tools