# FLAC to MP3

Convert lossless FLAC to MP3 and cut the size by around five times. Free, no signup, and the file never leaves your device.

Canonical page: https://filetity.com/flac-to-mp3

## Capabilities

- Free: Yes, with no watermark and no page limit.
- Account required: No. There is no account system.
- Processed on device: Yes. The file is read by your browser and never uploaded. There is no server to send it to.
- Formats: FLAC in, at any bit depth and sample rate the browser can decode. MP3 out at a quality you pick, or M4A.
- Limits: Album art and tags are not carried over, because they live in FLAC's own metadata blocks and MP3 stores that sort of thing differently.
- Mobile: Yes, on any modern mobile browser. Large files are limited by the memory the phone gives the browser.
- Offline: Yes, once the page has loaded. The tool keeps working with no network connection.

## Questions

### How much smaller will the MP3 be?

Around five times, though it depends on the music. FLAC typically compresses a CD to about half its raw size, roughly 700 to 900 kbps, and a good MP3 sits near 192, so a 40 MB track lands somewhere around 8 MB. The exact figure is shown before you start and again afterwards.

### Am I losing quality by doing this?

Yes, deliberately. FLAC is lossless and MP3 is not, so this discards information for good. Keep the FLAC files as your library and treat the MP3s as the copies you put on a phone or send to someone, which is what almost everybody doing this conversion actually wants.

### Why is FLAC a better source than another MP3?

Because nothing has been thrown away yet. Converting one lossy format to another means the encoder is deciding what to discard from audio that has already had things discarded, and the damage compounds. From FLAC the encoder sees the original signal, so at the same bitrate the result is better.

### Do my album art and tags survive?

No. FLAC keeps its artwork and tags in its own metadata blocks, and MP3 uses ID3 frames, which is a different structure entirely. What comes out is the audio itself. A music library manager will usually re-tag a folder of files in one pass, which is the easier way to do it.

### What about a 24 bit 96 kHz recording?

MP3 supports six sample rates and nothing above 48 kHz, so the audio is brought down to 48 kHz, and MP3 has no concept of bit depth in the way a FLAC does. The page says so before it runs. If preserving the master matters, keep the FLAC and treat the MP3 as a listening copy.

## Related tools

- [Audio Converter](https://filetity.com/audio-converter): Convert audio between MP3, M4A, WAV and OGG, on your own device.
- [WAV to MP3](https://filetity.com/wav-to-mp3): Convert a WAV recording to MP3, around a tenth of the size.