FLAC to MP3 Converter

FLAC is lossless but large and not supported everywhere. Convert to MP3 for a small, universally compatible audio file.

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Why convert FLAC to MP3?

FLAC is the gold standard for lossless audio — every bit of the original recording is preserved exactly, making it ideal for archival and audiophile listening. The downside is size: a typical album in FLAC is 250–400 MB, often 5 to 10 times larger than the same album in MP3.

MP3 has been the universal audio format since the late 1990s. It's lossy (some audio data is discarded during compression), but at 192 kbps or higher the difference from the lossless original is inaudible to most listeners on most equipment. Every device, every player, every car stereo, and every streaming service supports MP3.

Convert FLAC to MP3 when you want to fit more music on a phone, share files easily, or play tracks in older equipment that doesn't support FLAC. Keep the original FLAC files as your archive — you can always re-encode in the future.

About FLAC

FLAC (Free Lossless Audio Codec) is an open-source compressed audio format. It reduces file size by roughly 50% compared to uncompressed WAV without losing any audio data — decoding a FLAC file gives you a perfect reproduction of the original. It's the format of choice for music archives and audiophile downloads.

About MP3

MP3 (MPEG-1 Audio Layer III) is a lossy compressed format that's been the universal standard for digital audio since the 1990s. It uses psychoacoustic modeling to discard sound information humans can't easily hear, achieving very small files at acceptable quality.

Quality and file size

FLAC is lossless and MP3 is lossy, so there is a real quality loss in this conversion — but at standard MP3 bitrates of 192 kbps or 320 kbps, the difference is inaudible to most listeners. If you're converting for portable use, sharing, or general listening, the size savings (often 80% or more) are worth it.

Filesmith runs entirely in your browser using WebAssembly. Files are never uploaded to any server — conversion happens locally on your device, instantly and privately.

Accepts: MP3, WAV, AAC, OGG, FLAC, M4A

Frequently asked

What bitrate should I pick?

192 kbps is the comfortable minimum for music. 256 or 320 kbps are very close to transparent — almost nobody can tell the difference from the original FLAC.

Will I notice the quality drop?

On standard headphones or speakers, no. On high-end audiophile equipment in a quiet room, very rarely some listeners can hear it on certain tracks. For typical listening it's not a real concern.

Should I delete my FLAC files after converting?

No — keep them as your master archive. You can always re-encode to MP3 from FLAC later. The reverse isn't possible: once you've converted to MP3, the discarded audio data is gone.