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Convert MP3 to FLAC
MP3 is lossy, and some audio editors, phone systems and tools want uncompressed sound. FLAC compresses audio to roughly half size without losing any quality.
- Free
- No sign-up
- Batch conversion
Why convert MP3 to FLAC?
To convert MP3 files to FLAC, drop them on the counter above.
Most files convert in seconds: no queue, no email address, and the FLAC result saves straight to your computer or phone.
How to convert MP3 to FLAC
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Add your MP3 files
Drag your MP3 files onto the counter or pick them with Choose files. You can add several at once.
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Check the settings
The defaults suit most cases. Change quality, size or other options if you like; after a change, one click converts again.
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Conversion starts by itself
Each file is converted to FLAC and its row is stamped CONVERTED.
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Download your FLAC file
Get the file with Download. With several files you can download them all as one ZIP.
MP3 vs FLAC
| Property | MP3 | FLAC |
|---|---|---|
| Full name | MPEG-1 Audio Layer III | Free Lossless Audio Codec |
| Type | Audio | Audio |
| Compression | Lossy | Lossless |
| Created by | Fraunhofer IIS / MPEG | Xiph.Org Foundation |
| Year | 1993 | 2001 |
| Extensions | .mp3 | .flac |
| MIME | audio/mpeg | audio/flac |
About the formats
MP3
MPEG-1 Audio Layer III
MP3 is the most widespread audio format in the world. Lossy compression shrinks files to about a tenth of WAV, and it plays on every device.
FLAC
Free Lossless Audio Codec
FLAC is an open format that compresses audio to roughly half size without losing any quality. Music archivists and hi-fi listeners prefer it.
Frequently asked questions
Is converting MP3 to FLAC free?
Yes, completely free. No account, no daily limit, no watermark and no queue.
Does it work on a phone?
Yes. It works on iPhone, iPad and Android, with no app to install.
Is there a file size limit?
There is no size limit set by us. Files of hundreds of MB convert too; very large files take longer and are handled more comfortably on a computer than on a phone.
Other conversions
| Family | Give | → | Get | What you gain |
|---|---|---|---|---|
| FLAC | MP3 | plays on every device · smaller file | ||
| MP3 | WAV | lossless, ready to edit · larger file | ||
| MP3 | M4A | better than MP3 at the same size | ||
| MP3 | OGG | open and royalty-free | ||
| MP3 | OPUS | most efficient for speech | ||
| MP3 | AAC | broadcast-grade audio | ||
| WAV | FLAC | lossless at half size | ||
| M4A | FLAC | lossless at half size · iPhone voice memo | ||
| AAC | FLAC | lossless at half size · raw AAC stream | ||
| OGG | FLAC | lossless at half size · Telegram voice message | ||
| OPUS | FLAC | lossless at half size · WhatsApp voice note | ||
| WMA | FLAC | lossless at half size · old Windows Media audio |