Free · No signup · Files deleted after 1h
MP3 to FLAC
Converter
Wrap MP3 audio into lossless FLAC for archiving and hi-fi libraries — free, no signup.
Convert MP3 to FLAC free →No account needed · Up to 25 MB free · Files permanently deleted after 1 hour
Lossless from here on
FLAC won't discard any more audio data, so your file stays stable through future copies and edits.
Hi-fi library friendly
FLAC is the format of choice for audiophile players and music libraries.
Private & fast
Uploaded over HTTPS, converted on EU servers, never shared, deleted within 1 hour.
How it works
1
Upload your MP3
Drag and drop your .mp3 file or click to browse.
2
Choose FLAC output
FLAC is the default. You can also pick WAV, OGG, AAC or M4A.
3
Download your FLAC
Ready in seconds — click Download.
Common questions
Does this make the MP3 sound better?
No — FLAC can't restore detail MP3 already removed. What it does is stop any further quality loss, giving you a stable lossless master for archiving and editing.
Why convert MP3 to FLAC?
If you're building a music library or archive that mixes sources, FLAC is a consistent lossless container that audiophile players and tools prefer.
Why is the FLAC larger?
FLAC stores audio losslessly, so the file is bigger than the compressed MP3 — though smaller than uncompressed WAV.
Is there a file size limit?
Free users get up to 25 MB without an account; Pro raises it to 500 MB per file with 3,000 credits a month.