LocalConvert
Audio Converter

Convert audio to FLAC — free & private

Convert MP3, WAV, OGG, AAC and more to lossless FLAC format. No upload required — runs in your browser.

No server uploads100% privateGPU acceleratedOpen source

How to convert to FLAC

  1. 1

    Choose your file

    Click or drag any MP3, WAV, OGG file onto the uploader above.

  2. 2

    Pick FLAC format

    Select FLAC from the format dropdown in the converter.

  3. 3

    Save

    Hit the convert button, then save your FLAC file to your device instantly.

Supported input formats

.MP3.WAV.OGG.AAC.M4A

FAQ

Is the FLAC converter really free?

Yes, completely free. No hidden fees, no watermarks, no file size limits. LocalConvert is open source and free forever.

Are my files safe?

Absolutely. Your files never leave your browser. All conversion happens using WebAssembly running locally on your device — no uploads, ever.

What files can I convert to FLAC?

You can convert MP3, WAV, OGG, AAC, M4A files to FLAC.