FLAC to MP3
Free online converter
Drop a lossless FLAC file (from a CD rip, Tidal download, or hi-res source) and get a portable 128 kbps MP3 in seconds.
Drop your .flac file
or click to browse
Max 25 MB · .flac only
How FLAC to MP3 conversion works
Conversion preview
Why use Mictoo for FLAC to MP3?
When FLAC to MP3 is useful
Tips for clean FLAC to MP3
- Keep the FLAC as the lossless archive copy.
- 128 kbps is transparent for most listening.
- For tracks over 25 MB, trim or split the source before uploading.
- Vorbis metadata tags (title/artist) are not carried into the MP3.
What happens during conversion
We extract the audio from your FLAC and encode it as MP3.
FLAC vs MP3
| File type | Typical size | Best use |
|---|---|---|
| FLAC | Large (~5-8 MB/min) | Archival, hi-fi playback |
| MP3 | Small (~1 MB/min) | Sharing, phones, everywhere |
FLAC is already compressed
This is not compressing an uncompressed file. FLAC is lossless compression, usually 50 to 60 percent of the same WAV. Going to MP3 trades information for size, and the trade is one-way.
- Typical FLAC (44.1 kHz, 16-bit)
- about 5 to 6 MB per minute
- Same audio at 128 kbps MP3
- about 1 MB per minute
- Converting back to FLAC later
- Restores the file size, not the audio
- Keep the FLAC
- It is the archive copy. The MP3 is the listening copy
What gets lost besides audio
FLAC tags are Vorbis comments: free-form, unlimited length, any field you like. MP3 uses ID3v2, which has a fixed frame set.
- Usually survives
- Title, artist, album, track number, date, genre, cover art
- Usually dropped
- REPLAYGAIN values, embedded CUESHEET, multi-value artist fields, custom tags
- Cue sheets matter if
- You archived a full album as one FLAC plus a cue. The track splits do not survive
- Check first
- ffprobe -show_format file.flac lists every tag you are about to lose
Convert for compatibility, not size
Almost every reason to do this is a device that will not read FLAC.
- Real reasons
- Car head units, older Android builds, some podcast hosts and DAWs
- Bluetooth playback
- SBC and AAC re-encode on the way to the headphones anyway, so the FLAC advantage never reaches your ears
- Not a reason
- Saving disk space on a machine where the FLAC is your only copy
- Only after text?
- Upload the FLAC directly to our FLAC to text tool, no conversion needed
Frequently asked questions
Is the FLAC to MP3 converter free?
Yes. Files up to 25 MB can be converted without an account, and the output has no watermark.
Do I lose quality converting FLAC to MP3?
Technically yes (MP3 is lossy), but at 128 kbps the loss is inaudible for typical listening. Keep the FLAC as the archive copy.
Are FLAC-in-OGG files supported?
Yes. Both native FLAC (magic bytes fLaC) and FLAC inside OGG containers work.
Are files stored?
No. Uploaded FLAC is dropped after conversion; the MP3 is purged within the hour.
My FLAC is over 25 MB. What now?
Trim or split the source, or export a lower-resolution listening copy before uploading.