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Convert MP3 to FLAC online

Convert MP3 files to FLAC online

Want your file in a lossless format for storage or playback? This MP3 to FLAC converter helps you convert MP3 to FLAC in a few quick steps. It is a simple option when you need mp3 to flac online without extra software.

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Files are automatically deleted after processing.
No signup required
Works on all devices
Free forever

How it works

1

Upload the MP3

Choose the audio file that needs FLAC output.

2

Convert to FLAC

The MP3 is decoded and saved in FLAC format.

3

Download the FLAC

Use it in apps or libraries that require FLAC.

Frequently asked questions

About MP3 to FLAC

MP3 to FLAC creates a lossless-container copy from an MP3 source. This can be useful for editing systems, library consistency, or workflows that require FLAC, but it does not make the original MP3 lossless. The audio detail removed during MP3 compression is already gone. The FLAC file will likely be larger while sounding the same as the MP3. Use it for compatibility, not quality restoration. If you need true lossless quality, start from the original WAV, AIFF, or FLAC master instead of MP3.

Updated June 2026: Added guidance for MP3 to FLAC conversion, archive expectations, lossless limits, editing workflows, and file-size warnings.

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