Convert MP3 to FLAC
Free and instant — your MP3 files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert MP3 to FLAC
- Step 01
Add your MP3 files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your FLAC files
Save each file individually or grab them all at once. Done.
Why convert MP3 to FLAC?
Need your MP3 in a format that music software treats as lossless, like FLAC? Converting wraps the existing audio losslessly from this point on — it won't restore detail the original MP3 compression discarded, but the file will work anywhere FLAC is expected.
MP3 vs FLAC at a glance
MP3 is the universal audio format — plays on every device and app since the late 90s, smaller than WAV with near-identical quality. FLAC is lossless audio with compression — identical quality to WAV but 40–60% smaller, the audiophile choice for music archival.
| Property | MP3 | FLAC |
|---|---|---|
| Extension | .mp3 | .flac |
| Full name | MPEG-1 Audio Layer III | Free Lossless Audio Codec |
| First released | 1993 | 2001 |
| Developed by | Fraunhofer IIS | Xiph.Org |
| Compression | Lossy | Lossless |
| Transparency | No | No |
| Animation | No | No |
| Best for | music and podcast playback on any device | audiophile music listening and archival of high-quality audio |
MP3 to FLAC — frequently asked questions
Is this MP3 to FLAC converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will converting MP3 to FLAC lose quality?
No. FLAC is a lossless format, so the converted file keeps every pixel exactly as decoded from your MP3.
Does converting MP3 to FLAC improve quality?
No — FLAC can't add back detail that MP3's lossy compression already discarded. The file will be larger but won't sound better.
Is the conversion private?
Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.
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