Online Audio Mastering with Immersive Spatial Engine
Master your music in seconds - upload your track and get professional-quality audio mastering powered by AI. Free preview available. LOUDCRAFT automatically builds a Sonic Profile of your mix, applies a multi-stage mastering pipeline, and delivers streaming-ready audio with immersive spatial enhancement.
How It Works
- Upload your audio file (MP3, WAV, FLAC, AAC, and more - 50MB on the free plan, up to 200MB on Studio)
- AI Analysis - automatic Sonic Profile analysis, loudness measurement, and spectral analysis
- Processing - Professional mastering pipeline with spatial engine, tonal shaping, and loudness optimization
- Listen and compare - the free plan streams a 90-second preview in your browser; Pro and Studio download the full track for Spotify, Apple Music, YouTube, and all streaming platforms
Why LOUDCRAFT?
- Sonic Profile Analysis - Perceptual AI analyzes spectral balance, stereo image, transient response, and loudness to build a complete mix profile for optimized mastering
- Immersive Spatial Engine - Multi-band stereo enhancement that widens and deepens your mix while preserving mono compatibility. Spatial processing like this is uncommon among online mastering services
- LUFS Normalization - Intelligent loudness targeting: streaming (-11 LUFS), dynamic (-14 LUFS), competitive (-9 LUFS), and custom targets
- True Peak Limiting - Broadcast-safe limiting at -1 dBTP prevents inter-sample clipping
- A/B Comparison - 11 real-time visualizations to compare your original and mastered audio
- Free Preview - 3 masters per day with full quality processing, no account required. Pro and Studio plans for unlimited access
Supported Audio Formats
MP3, WAV, FLAC, AAC, OGG, M4A, AIFF, OPUS, WMA - 50MB on the free plan, 150MB on Pro, 200MB on Studio. Batch processing available on Pro and Studio plans.