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Convert FLAC to MP3 online

Convert a FLAC file to MP3 directly in your browser — the file is never uploaded to a server.

Processed on your device via WebAssembly. Nothing is sent to any server.

or click to select it

Convert a FLAC file — a losslessly compressed format that sounds identical to the original recording — into MP3, trading some of that fidelity for a much smaller file that plays on virtually any device.

FLAC compresses audio the way a ZIP file compresses a document: nothing is discarded, and decompressing it returns the exact original waveform. That's why it's the format of choice for archival downloads on sites like Bandcamp. This tool decodes that lossless audio and re-encodes it as MP3, which discards some detail to shrink the file further and gain compatibility with hardware that has no FLAC decoder.

Use cases

  • Play a FLAC album you bought on Bandcamp on an old MP3 player or car stereo that doesn't support FLAC.
  • Shrink a FLAC music collection for a phone with limited storage.
  • Convert lossless FLAC podcast masters into MP3 for easier distribution.

How it works

  1. 1

    Upload your FLAC file

    Drop the file in or select it from your device.

  2. 2

    Adjust the bitrate if you want

    A high automatic quality is used by default; you can set a specific bitrate in the options.

  3. 3

    Download the MP3

    Once it's done, download the resulting file.

Technical details

Runs ffmpeg.wasm in your browser. FLAC typically compresses audio to 50-60% of the size of the equivalent WAV file with zero quality loss; MP3 goes further by using lossy compression, often reaching 10-15% of the original WAV size at a bitrate most listeners can't distinguish from the source.

Frequently asked questions

Doesn't converting FLAC to MP3 waste the whole point of having a lossless file?

In a sense, yes — MP3 discards audio detail that FLAC preserves. But if your player or car stereo can't read FLAC at all, converting a copy to MP3 while keeping the original FLAC lets you use both.

What bitrate should I use for the best MP3 quality?

320kbps or the automatic high-quality setting gets closest to the original FLAC; most listeners won't tell the difference from the source at that bitrate.

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