Free tool

FLAC to MP3 converter a lossless library, small enough for the road.

Drop FLAC files and download MP3s at the bitrate you choose. A fifth of the size, plays on every phone, car and player. Several at once.

Drop audio files here or click to choose. MP3, WAV, M4A, AAC, OGG, FLAC, AIFF, or the sound of a video. Several at once is fine.

Convert to Bitrate MP3, M4A and OGG Channels

FLAC to MP3 converter at a glance

content.win encodes FLAC to MP3, a whole album in one drop, with no queue and no daily cap.

Works with: FLAC files at any sample rate and bit depth, 16 or 24-bit, stereo or mono.
Comes back as: MP3, the full length, named after the original.
Runs: In your browser.
Limits: No daily limit and no cap on how many files.
Price: Free. No account, no watermark.

Drop the FLAC files in. Several at once is fine.
Pick a bitrate. 128 kbps for speech, 192 for music, 320 when every detail matters. Mono halves the size of a spoken recording.
Download the MP3 files. Each has its own player and Download button; one button takes them all.

Phones and players: A 30 MB FLAC becomes a 7 MB MP3 at 320 kbps that plays on any phone, car or player.
Sharing: Send a track through email or a messaging app that a FLAC would not fit.
Older devices: Many car stereos, players and TVs read MP3 and not FLAC.
Space: A lossless library at 320 kbps takes about a fifth of the room on a phone.

FLAC is lossless; MP3 at 320 kbps removes only what the ear cannot hear, and at 192 kbps the difference is inaudible to most listeners.
Keep the FLAC as the master. Convert copies for the devices that need them.

Which bitrate for FLAC to MP3?

320 kbps keeps everything you can hear; 192 kbps if space matters more. Both play everywhere.

Does it handle 24-bit or 96 kHz FLAC?

Yes. Any FLAC the browser reads, including hi-res files, comes out as a standard MP3.

How big will the MP3 be?

About 1 MB per minute at 128 kbps, 1.4 MB at 192, 2.3 MB at 320. Mono halves those.

Can I convert several files at once?

Yes. Drop them all; each comes back named after the original, and one button downloads the lot.

Does it work on a Mac?

Yes. It runs in the browser on Mac, Windows, Linux, iPhone and Android.