MP3 to FLAC on Linux
Convert MP3 to FLAC on your Linux. No app to download. Open your browser, drop your file, and convert. Done in seconds.
Drop your MP3 file here or click to browse
MP3 (.mp3) · Max 20 MB
Runs in Firefox and Chrome on any Linux distro. No terminal commands. No package managers. AudioUtils uses WebAssembly to run the conversion engine locally. Your audio stays on your device.
If you prefer the command line, FFmpeg is an alternative. But AudioUtils is faster for quick one-off conversions.
MP3 is lossy. Converting to FLAC won't restore lost data, but gives you an uncompressed container for editing workflows. The output is identical regardless of which device or browser you use.
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.
About MP3
The most widely used audio format. Great compatibility, small file size. Ideal for music, podcasts, and general use.
About FLAC
Lossless compression. Perfect quality at roughly half the size of WAV. The choice for audiophiles and archiving.