Convert lossless FLAC music files to compact, universally-compatible MP3. Runs entirely in your browser — no upload required.
Select one or multiple .flac files — batch conversion supported
FLAC is a lossless audio format popular with audiophiles and music archivists — files preserve every bit of the original studio recording, but at 3–5x the file size of MP3. Not every device or app plays FLAC natively, and the extra size makes it impractical for phones, streaming, or sharing over messaging apps.
Limited phone storage — a FLAC music library can eat up gigabytes; MP3 fits far more.
Car stereos & older devices — many older systems and budget MP3 players don't support FLAC.
Sharing & messaging apps — MP3 uploads faster and is universally accepted.
No. Conversion runs entirely in your browser using the Web Audio API to decode and a small JavaScript MP3 encoder to encode. Files never leave your device.
FLAC is lossless, so converting to MP3 does involve some quality loss — but at 320 kbps, the difference is inaudible to almost all listeners on typical playback devices.
Yes — batch conversion is fully supported. Download individually or click Download All.
It uses your browser's built-in audio decoder plus a tiny ~40KB encoding library, instead of a large video engine, so the page is ready almost instantly.