About Kastr

Kastr is lyrics projection software for churches and live events. You paste the lyrics and Kastr turns them into slides. Then you build the setlist and run it on projectors, LED walls, lobby TVs and phones from one deck.

It's for church teams and anyone who puts words on a screen for a crowd, including choirs, concerts, conferences and sing-alongs. A volunteer can advance slides from their phone by scanning a QR code.

Kastr runs in your browser. If the booth has no internet, you can install Kastr for Windows, which works offline. You don't need an account for the Windows app. Sign in only if you want to sync your songs, themes and programs.

Every feature is free, on the web and on Windows. There are no paid plans. Donations keep Kastr running.