Convert MP3 to FLAC
Free, private, and instant. Your MP3 files are converted to FLAC entirely inside your browser — nothing is uploaded to a server, so there's no waiting for uploads and no privacy risk.
Convert MP3 to FLAC NowAbout MP3 (MPEG Audio Layer III)
The most universally supported audio format in existence. Every device, platform, and player handles MP3, and at 192-320 kbps most listeners can't distinguish it from lossless. ACX/Audible requires audiobooks as 192 kbps or higher CBR MP3.
Best for: sharing, audiobooks (ACX), podcasts, maximum compatibility
About FLAC (Free Lossless Audio Codec)
Lossless compression: identical audio quality to WAV at roughly half the file size. FLAC is the go-to for archiving music collections and delivering masters, and it's the required upload format for several distribution platforms. It supports embedded metadata and album art, which WAV handles poorly.
Best for: archiving, music distribution, audiophile listening
How to convert MP3 to FLAC
- Open the converter — FLAC will be preselected as the output format.
- Drag and drop your MP3 files (batch conversion supported).
- Optionally pick a platform preset (ACX audiobook, Spotify, podcast) or enable loudness normalization, silence trimming, or noise reduction.
- Click Convert — processing happens on your own device.
- Preview the result and download your FLAC files.
MP3 vs FLAC: what changes?
MP3 is a lossy compressed format, while FLAC is lossless. Converting to FLAC will not restore quality that MP3 compression already discarded — but it gives you an editing-safe, universally compatible file that won't degrade further with processing, which is exactly what studios, DJs, and mastering engineers need.