FLAC to MP3 Converter

Compress your lossless FLAC files into high-quality MP3s. Ideal for saving space on mobile devices and ensuring compatibility with all media players.

Drop FLAC files here or click to upload

Convert high-res audio to portable MP3

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About FLAC to MP3

FLAC (Free Lossless Audio Codec) is the gold standard for audio enthusiasts because it preserves every bit of data from the original recording. However, FLAC files are very large and aren't supported by every device. MP3 is a "lossy" format that significantly reduces file size while maintaining a listening experience that most people find indistinguishable from the original.

Our converter operates entirely Client-Side. By using the Web Audio API and the `lamejs` encoder, your computer does the processing locally. This means your private music collection is never uploaded to any server.

How to Convert FLAC to MP3

  1. Upload FLAC: Drag and drop your .flac files or click the upload box to select them.
  2. Check Queue: Review your files in the list. You can add more files to process them in a batch.
  3. Start Encoding: Click "CONVERT TO MP3". Your browser will decode the FLAC data and re-encode it as MP3.
  4. Download: Once the process bar finishes, your new MP3 files will be saved to your device.

Frequently Asked Questions

Will I lose audio quality?

MP3 is a lossy format, so there is a technical loss of data. However, at our high-bitrate encoding, the difference is virtually unnoticeable on standard headphones or speakers.

Is there a file size limit?

We do not impose a limit, but large FLAC files (like full albums in one file) require significant RAM for the browser to decode and encode simultaneously.

Can I convert FLAC to MP3 on mobile?

Yes, this tool works in modern mobile browsers on both Android and iOS, making it easy to convert high-res files on the go.

Is my data secure?

Yes. Since the conversion is performed by your own browser using JavaScript, your files are never transmitted to our servers.