Songmastr

What is Songmastr?

Songmastr is an AI-powered service that automatically masters your songs. You upload a reference track, and the AI masters your song to match it. It’s free for up to seven songs per week, with paid plans starting at C$8 if you need more. Songs can be up to 10 minutes long and under 80MB, and no sign-up is required.

The service is built on the open-source Matchering library and aims to deliver professional-quality mastering that sounds like your chosen reference track, giving your music a commercial-grade polish for any genre or vibe.

Who created Songmastr?

Songmastr was created by one person, Sergree, using the open-source Matchering library. The goal is to make professional-quality mastering accessible: seven free masterings per week without registration, plus paid plans for heavier use.

What is Songmastr used for?

• Automatic song mastering to a reference track — its core function, making your song sound like a specific track you choose.
• AI mastering for a commercial-grade sound — a polished, professional finish.
• Genre and vibe alignment — guide the AI to match the feel you want.
• Registration-free access — start mastering without creating an account.
• Seven free masterings per week — with paid plans if you need more.
• Server efficiency — song length and size limits keep the service available for everyone.

Tips for best results

For the best output, upload songs that are already well-mixed, have some headroom (around -6dB), and don’t have limiters on them. This gives the AI room to work with the dynamic range. Choosing a reference track that fits your song’s genre and mood also improves the result.