GlitchTip is an open-source error tracking and application monitoring platform designed as a privacy-preserving alternative to commercial services like Sentry. The platform captures application errors, exceptions, and performance issues, providing developers with detailed debugging information and issue context. GlitchTip maintains full compatibility with Sentry client libraries, allowing seamless migration from Sentry without modifying application code. The service supports self-hosting, enabling organizations to maintain complete control over error data and infrastructure without relying on third-party cloud providers. GlitchTip provides comprehensive error grouping, duplicate detection, and alert routing to notify development teams of critical issues. The platform includes detailed error context including stack traces, variable inspection, and user session information to facilitate rapid issue resolution. GlitchTip emphasizes data privacy and can be deployed in isolated environments for organizations with strict data residency requirements.