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MP3 to FLACFree online tool

Convert MP3 audio to FLAC with bitrate, sample rate, channel and trimming controls.

or drag and drop files here

MP3 · 4.00 MB total · No sign-up

Checking available conversions…

Encrypted upload · Temporary processing files removed after each request

A quick walkthrough

  1. 01

    Choose files and an output format.

  2. 02

    Use a recommended preset or adjust advanced settings. Batch files run individually.

  3. 03

    Preview and download each result. Retry only failed files or download successful results together.

Watch tutorials and read guides →
01   Choose your file02   Preview & adjust03   Download your result
HOW IT WORKS

How to use MP3 to FLAC for free

  1. Choose a small MP3 audio file within the upload limit.
  2. Choose supported bitrate, sample rate and channels. Set start and end times if you need a clip.
  3. Convert, play the output and download it after checking sound and duration.

Check your result

Converting lossy audio to WAV or FLAC does not restore missing detail. File size depends on duration and settings; a WAV output can be much larger.

Example: Prepare a short audio clip as FLAC for a compatible player, then compare playback with the original.

Online uploads and individual outputs are limited to 4 MB. Direct conversions need no account or payment. See all limits · Conversion tutorials.

Do I need to create an account?

These direct conversions work without signing in or payment. The current upload limit is shown in the upload area. Temporary processing files are removed after the request ends.

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