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Cifrivo
Audio

FLAC to MP3

Convert lossless FLAC files to smaller MP3 files at 128, 192, 256 or 320 kbps.

FreeNo sign-upLocal processing

Your files are processed locally and never leave your device.

Drop your audio files here

Choose files from your device. URLs and platform downloads are not accepted. Up to 10 files, 100 MB each and 300 MB in total.

How it works

  1. Select the files accepted by FLAC to MP3.
  2. Choose the output and quality options.
  3. Start local processing and follow the real progress.
  4. Review the actual result and download it.

Practical example

Select a file in FLAC to MP3, choose 192 kbps when available and compare the real input and output sizes after processing.

Formula and explanation

FLAC is lossless, while MP3 is lossy. The chosen bitrate balances final size and fidelity to the decoded FLAC source.

Supported path: FLAC → MP3. Compatibility also depends on the codec contained in each file.

Processing runs with FFmpeg WebAssembly inside this browser. Files are not uploaded to Cifrivo or a third-party service.

Frequently asked questions

Is FLAC to MP3 free?

Yes. It is free and requires no account.

Are my files uploaded?

No. All decoding, encoding and downloads happen locally in your browser.

Which formats are supported?

This tool supports FLAC → MP3. A valid extension, MIME type and file signature are checked first.

Audio

WAV to MP3

Compress WAV audio into MP3 and compare the actual original and final file sizes.

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OGG to MP3

Convert OGG audio to MP3 for broader compatibility, including batch processing.

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Compress audio

Reduce MP3, WAV or M4A file size with high, balanced or maximum compression.

Audio

Change audio bitrate

Re-encode MP3 audio at 64, 96, 128, 192, 256 or 320 kbps and compare actual size.