AudioUtils

Convert MP3 to FLAC

Convert MP3 files to FLAC format. While this won't restore lost audio data from MP3 compression, it gives you a FLAC container compatible with high-fidelity audio systems and players.

MP3FLAC

Drop your MP3 file here or click to browse

MP3 (.mp3) · Max 20 MB

Free — 5 conversions/day, 20MB limit. Upgrade for unlimited

What is MP3?

The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.

What is FLAC?

Lossless compression. Perfect quality at roughly half the size of WAV. The choice for audiophiles and archiving.

Why Convert MP3 to FLAC?

Some audio systems and players only accept lossless formats. Converting MP3 to FLAC wraps your audio in a lossless container. The audio quality stays identical to the source MP3 — no data is restored. But the FLAC container is accepted by high-end audio hardware, audiophile software, and archival systems that reject lossy formats.

Frequently Asked Questions

Does converting MP3 to FLAC make it lossless?

No. The audio quality remains identical to the source MP3. FLAC is the container format, but the audio data inside was already compressed with loss. For true lossless quality, start with an uncompressed source like CD audio or WAV.

Will the FLAC file be larger than the MP3?

Yes, somewhat. FLAC wraps the decoded audio in lossless compression, so the file will be larger than the MP3 but smaller than the equivalent WAV.

When does MP3 to FLAC conversion make sense?

When you need FLAC format for compatibility reasons — certain audio players, home theater systems, or archival workflows that require FLAC input.

What's the best source for FLAC files?

Rip from CDs, buy from services like Bandcamp or Qobuz, or convert from WAV/AIFF masters. Starting with a lossless source ensures true FLAC quality.