FLAC to MP3 Converter
Convert FLAC to MP3 free — no upload, no signup
To convert FLAC to MP3, drop your FLAC audio files into the box below and click Convert. Fylo converts with ffmpeg running inside your browser, so nothing is uploaded and there's no signup or watermark. Make hi-fi FLAC music fit on phones and play in cars.
Drop audio files here
or tap to browse · paste with Ctrl+V · add many at once
Your files never leave your device
Advanced
How to convert FLAC to MP3
Add your FLAC files
Drag and drop FLAC files into the box or tap to choose them. The converter engine (about 31 MB) downloads once, the first time you convert.
Pick a bitrate
192 kbps suits music and 128 kbps or less suits speech. Sample rate and mono/stereo are under Advanced.
Convert and download
Click Convert, then download each MP3 file or all of them as one ZIP.
Why convert FLAC to MP3?
FLAC is perfect for archives but large and unsupported by many car stereos, older iPhones and some apps. MP3 copies are small and play everywhere.
What happens when you convert FLAC to MP3?
Fylo encodes MP3 at 192 kbps by default (320 kbps for audiophiles), shrinking files by around 75–80%. Hi-res FLACs are converted to standard 16-bit before encoding.
How does Fylo convert FLAC to MP3?
Fylo decodes the FLAC audio in the FLAC with ffmpeg compiled to WebAssembly and encodes it with the LAME MP3 encoder at 192 kbps (adjustable from 96 to 320 kbps). Going from lossless to lossy is where the big saving happens: a 3-minute song is ≈ 18–24 MB as FLAC but ≈ 4.3 MB at 192 kbps as MP3. The original sample rate and channel layout are kept unless you change them under Advanced.
What's the difference between FLAC and MP3?
FLAC (Free Lossless Audio Codec) was released in 2001 and later maintained by the Xiph.Org Foundation. It compresses PCM audio like a ZIP file compresses data: nothing is thrown away, so a FLAC decodes to exactly the same samples as the source WAV, typically at 50–70% of the size.
MP3 (MPEG-1 Audio Layer III) was developed largely at Germany's Fraunhofer Institute and standardised in 1993. It removes sounds the ear is unlikely to notice — a technique called perceptual coding — so a 3-minute song takes about 4 MB at 192 kbps instead of about 32 MB as WAV. The last MP3 patents expired in 2017, so it's now free to use.
Learn more: FLAC format guide · MP3 format guide
| Property | FLAC | MP3 |
|---|---|---|
| Compression | Lossless | Lossy |
| Typical bitrate | ≈ 700–1,100 kbps | 128–320 kbps |
| 3-minute song | ≈ 18–24 MB | ≈ 4.3 MB at 192 kbps |
| Tags and cover art | Yes (with cover art) | Yes (ID3) |
| Compatibility | Android, Windows 10+, macOS, most players and hi-fi gear | Universal |
| Best for | Archiving music without quality loss | Music and podcasts on any device |
| Introduced | 2001 | 1993 |
Frequently asked questions
What bitrate keeps FLAC quality?
320 kbps MP3 is indistinguishable from FLAC for most listeners; 192 kbps is a good balance.
Can I convert a whole album?
Yes — drop all the tracks at once and download them as a ZIP.
Is my FLAC file uploaded to a server?
No. Fylo runs ffmpeg, the same engine used by professional video tools, compiled to WebAssembly inside your browser. Your FLAC file is read directly from your device and never sent anywhere.
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