FLAC to MP3 Converter
Convert FLAC audio to MP3 format.
Drop your FLAC file here
or click to browse · max 500 MB
Settings
128k for speech · 192k for general use · 320k for music
FFmpeg WASM (~25MB) will be downloaded on first use and cached by your browser.
FLAC to MP3 Converter
Converts lossless FLAC (Free Lossless Audio Codec) files to compressed MP3 format. FLAC preserves perfect audio quality but produces large files. MP3 uses perceptual audio coding to dramatically reduce file size while maintaining excellent listening quality.
What is it used for?
- Converting lossless music library for portable devices with limited storage
- Creating streaming-friendly versions of high-quality recordings
- Sharing music files that are too large in FLAC format
- Making FLAC files compatible with devices/apps that don't support FLAC
- Preparing audio for web playback where FLAC support is inconsistent
Step-by-Step Guide
- Upload your FLAC file
- Set audio bitrate (128-320kbps) in the settings panel
- Click 'Convert to .MP3'
- Preview the MP3 result
- Download - files are typically 70-80% smaller than the FLAC original
How it works
Upload a FLAC file. FFmpeg decodes the lossless audio and re-encodes to MP3 using LAME VBR quality 2. This preserves as much quality as possible in the lossy format. All processing happens in your browser.
Tips & Best Practices
- FLAC to MP3 conversion preserves the best possible quality since FLAC is lossless
- Always keep your FLAC originals as master copies
- Use 256-320kbps for audiophile-grade MP3 conversion
Frequently Asked Questions
How much quality do I lose converting FLAC to MP3?
At 192kbps VBR or higher, most listeners cannot distinguish MP3 from the original FLAC in blind listening tests. At 320kbps, the difference is essentially imperceptible.
Should I keep my FLAC files?
Yes, if you have storage space. FLAC is your lossless master copy. You can always create MP3s from FLAC, but you cannot recreate the lossless version from MP3.
How much smaller is MP3 than FLAC?
MP3 at 192kbps is typically 70-80% smaller than FLAC. A 30MB FLAC file becomes about 5-8MB as MP3.
Privacy & Security
This tool uses FFmpeg compiled to WebAssembly (WASM). The WASM binary (~25MB) is downloaded from a CDN on first use and cached by your browser. All file processing happens locally on your device - your files are never uploaded to any server. This makes it safe for sensitive, private, or confidential media files. Large files may take longer to process depending on your device's CPU and available memory.