Songmastr

Songmastr leverages artificial intelligence to deliver professional-grade audio mastering without requiring technical expertise or expensive software. Upload your well-mixed track alongside a commercial reference song in the same genre, and the AI analyzes and matches critical audio parameters including RMS level, frequency response, peak amplitude, and stereo width. This reference-based approach ensures your final mix achieves commercial-quality loudness and tonal balance that translates across all playback systems. The mastering process is designed to be straightforward and accessible. Simply upload your audio file (up to 10 minutes, 80MB maximum) from your computer, select an appropriate reference track that matches your song's genre and vibe, and let the AI handle the technical adjustments. The platform provides guidance on choosing reference tracks and preparing your mix, emphasizing the importance of leaving adequate headroom and avoiding limiting before submission—the AI will handle dynamic processing during mastering. Built on the open-source Matchering library, Songmastr's AI system analyzes professional reference tracks and applies sophisticated audio engineering principles to your mix. This approach eliminates the need for manual EQ, compression, and limiting adjustments, making professional mastering available to independent musicians, producers, and studios. The tool accepts stereo compression in your mix but recommends leaving dynamic headroom for optimal results. Songmastr offers a generous free tier allowing mastering of up to seven songs weekly with no registration or software installation required. The straightforward upload-and-download workflow means you can master tracks directly from your browser, making it ideal for quick turnarounds and iterative mastering across multiple versions.