Compress FLAC to MP3

Need smaller audio files? Converting FLAC to MP3 dramatically reduces file size. A 50MB file becomes 5MB. Perfect for email, sharing, and storage.

FLACMP3

Drop your FLAC file here or click to browse

FLAC (.flac) · Max 20 MB

FLAC files are uncompressed and huge. MP3 uses lossy compression to shrink them by 90% or more. The size reduction is significant for sharing, uploading, and storage.

For email attachments, 128-192kbps works well. For music sharing, use 256-320kbps. AudioUtils lets you drop your file and convert instantly. No upload to a server, no waiting.

A minute of FLAC is about 5 MB; the same minute as MP3 is roughly 1.4. Across an album or a long recording that difference decides whether it fits on a phone. Keep the FLAC. It's the archival master; the MP3 is the copy that travels. Re-encode from the master whenever you need another format or bitrate.

FLAC files come from CD rips, hi-res download stores, and archival libraries. FLAC is lossless but poorly supported outside audiophile software — Apple's Music app won't touch it — which is the whole reason this conversion exists. MP3 is the destination because it plays essentially everywhere — downloads and every ordinary phone, browser, and player. Expect roughly 4× smaller: FLAC runs about 5 MB per minute, MP3 about 1.4. Because FLAC is lossless, encoding to MP3 here is the clean, single-generation case — the encoder sees the whole original signal, so this MP3 is as good as the format gets.

Frequently Asked Questions

How much smaller will the file get?

A minute of FLAC is about 5 MB; the same minute as MP3 is roughly 1.4. Across an album or a long recording that difference decides whether it fits on a phone.

What bitrate keeps the quality acceptable?

192–256 kbps is transparent for most music, 128 kbps is fine for speech, and 64–96 kbps mono is plenty for pure voice — halving the size again with no real cost. Below that you start hearing it.

Will compressing damage the audio?

Keep the FLAC. It's the archival master; the MP3 is the copy that travels. Re-encode from the master whenever you need another format or bitrate.

Should I compress a master or an archive copy?

Never the master. Compress a copy for sharing and listening, and keep the original — you can always re-encode from it, but you can never re-create what a lossy encoder discarded.

Is this compressor free?

Yes. Free users get 5 conversions per month. The output is limited to the first 10 seconds as a preview, with a 20MB input file size limit. Upgrade to Pro for unlimited, full-length conversions.