MP3 to FLAC Converter - Free Online Tool | Compresso
Convert MP3 files to FLAC format quickly and securely. Free online converter with privacy-first approach - all processing happens in your browser.
Drag MP3 files here or click to select
Supported formats: .mp3 • Maximum file size: 100MB
Feature in development
This feature is under development. We're working on integrating FFmpeg WebAssembly for audio conversion.
Convert MP3 to FLAC
Convert MP3 audio files to FLAC (Free Lossless Audio Codec). FLAC provides lossless compression with smaller file sizes than WAV.
✓ Benefits
- • Lossless compression - perfect audio quality
- • Smaller than WAV, larger than MP3
- • Open-source and royalty-free
ℹ️ Information
- • Formats: .mp3 → FLAC
- • Max size: 100MB per file
- • Preserves full metadata
Frequently Asked Questions
Are my audio files safe during conversion?
Yes! All audio conversions happen locally in your browser using WebAssembly. No audio files are uploaded to our servers.
What audio quality can I expect?
Our converter maintains high audio quality with customizable bitrate settings. You can choose from various quality presets or set custom parameters.
What is the maximum audio file size?
You can convert audio files up to 100MB in size, which accommodates most songs and audio recordings in common formats.
How long does audio conversion take?
Audio conversion typically takes 10-60 seconds depending on file size and target format. All processing happens in your browser.
Your privacy is protected
All files are processed locally in your browser. No data is sent to our servers.