MP3 is the universal compressed audio format. It plays on every phone, car stereo and music app. FLAC is lossless compressed audio: half the size of WAV with exactly the same sound. Favoured by audiophiles, but many players and phones don’t support it.
Converting to FLAC archives audio losslessly while saving space compared to WAV. The conversion happens entirely in your browser, so your files are never uploaded and there’s no size limit beyond your device’s memory.
How to convert MP3 to FLAC
- Choose your MP3 file.
- Pick the audio quality, and set a start and end time if you only need part of it.
- Press Convert and download the FLAC.
Questions
Is MP3 to FLAC conversion free?
Yes, completely free with no limits, sign-up or watermark.
Are my files uploaded?
No. Conversion runs on your own device, so your files stay private.
Will FLAC sound better than the MP3?
No – FLAC keeps exactly what’s in the MP3, but can’t restore detail that lossy compression already removed.