MP3 to FLAC Converter
Convert MP3 to FLAC for free, right in your browser – no sign-up and no upload to a server.
Drop your file here
or click to browse
Supported formats: MP3 · Max size: 500 MB
Your file stays on your device – it is never uploaded. Only convert files you own or have the right to use.
MP3 to FLAC converts a file into a lossless format used by audiophile players and music libraries. Note: quality lost in the MP3 cannot be recovered.
If you have the original WAV or CD, convert from that instead – the result will be better.
How to convert MP3 to FLAC
Choose a file
Drop your MP3 file into the box or click “Choose file”.
Click “Convert”
Conversion runs in your browser, so the file is never sent anywhere.
Download the result
You get a ready FLAC file – download it with one click.
MP3 vs FLAC: comparison
| Property | MP3 | FLAC |
|---|---|---|
| Compression | Lossy | Lossless |
| Quality | Good (192–320 kbps is hard to tell from the original) | Excellent – identical to the original |
| File size | Small (about 1 MB per minute at 128–192 kbps) | Medium (about 40–60% of the WAV size) |
| Compatibility | Plays everywhere – phones, cars, players | Most players and phones; some older devices cannot play it |
| Best for | Music, podcasts, everyday listening | Music libraries, audiophile listening, archiving |
Why convert to FLAC
- No audio quality loss
- About half the size of WAV
- Supports tags and cover art
Good to know about FLAC
- Larger than MP3
- Some older players cannot play it
What is MP3?
The most popular audio format, using lossy compression. Music, podcasts, everyday listening.
What is FLAC?
A lossless audio format – WAV quality at roughly half the size. Music libraries, audiophile listening, archiving.
When to choose MP3 to FLAC
FLAC is a lossless compressed format, so many music libraries and players treat it as a high-quality format. Converting from MP3 is worthwhile mainly for compatibility or to keep one uniform file format in a collection, not for better sound.
Common problems and fixes
- The sound does not improve. The MP3 has already lost part of the audio information, and FLAC cannot restore it – it only preserves what is left.
- The file will be several times larger than the MP3, because FLAC stores losslessly even though the source was lossy.
- Some older device software does not support FLAC.
Tips
If you really want the best quality, look for the original CD rip or a store-bought FLAC. A FLAC made from an MP3 is useful only as an intermediate file that will not be compressed with MP3 again.