Convert MP3 to FLAC
MP3 is great for sharing music, podcasts and ringtones that play on every device, but FLAC is the better choice for archiving CDs and hi-res music without quality loss. Convert MP3 to FLAC in seconds, right in your browser.
- No upload — 100% private
- Fast, lossless when possible
- Free & unlimited
- Works on iPhone & Android
Keep this tab open — the conversion runs on your device, nothing is uploaded.
Add more files above to keep converting.
How to convert MP3 to FLAC
- 1
Tap Choose files and select one or more MP3 files (or drag them in).
- 2
Check that FLAC is selected. Use Advanced options for bitrate, channels or trimming.
- 3
Press Convert. Everything happens on your device — no upload, no waiting in a queue.
- 4
Your FLAC downloads automatically. Converting several files? Grab them all as a ZIP.
MP3 vs FLAC
FLAC is lossless, but it can't restore detail already removed by MP3's compression — the file just gets bigger. Convert when an app or editor requires FLAC.
| MP3 | FLAC | |
|---|---|---|
| Full name | MPEG-1 Audio Layer III | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Developed by | Fraunhofer IIS | Xiph.Org |
| Introduced | 1993 | 2001 |
| Plays on iPhone | ✓ Yes | ✓ Yes |
| Plays on Android | ✓ Yes | ✓ Yes |
| Plays on Windows | ✓ Yes | ✓ Yes |
| Plays on Mac | ✓ Yes | ✓ Yes |
About MP3 and FLAC
MP3: MP3 is the most widely supported audio format in the world. It uses lossy compression to make music and voice files small enough to share, while keeping quality good enough for everyday listening.
FLAC: FLAC is an open lossless format that shrinks audio to 50–60% of WAV size without losing any quality. It is the favourite format of audiophiles and hi-res music stores.
Frequently asked questions
How do I convert MP3 to FLAC on my phone?
Will converting MP3 to FLAC reduce quality?
Is this MP3 to FLAC converter free?
Are my files uploaded to a server?
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