Sentry

Sentry is the leading error tracking platform, used by thousands of development teams to catch and debug production errors. Its pricing starts at $26/month for the Team plan with limited error volume, but costs scale with error events — high-traffic applications can see bills of $200-500/month or more.

GlitchTip is a streamlined, open source error tracking tool compatible with Sentry's SDK ecosystem — your existing Sentry client libraries work with GlitchTip with just a DSN change. It provides error grouping, stack traces, release tracking, and uptime monitoring in a lighter-weight package. Highlight.io takes a broader approach, combining error tracking with session replay and log management, giving you full-stack observability in a single self-hosted tool.

The SDK compatibility advantage is significant. Because GlitchTip supports Sentry's client protocol, migrating from Sentry means changing a configuration URL — not rewriting instrumentation code. Your JavaScript, Python, Ruby, Go, and other Sentry SDKs work out of the box. This makes GlitchTip one of the easiest open source migrations available.

Self-hosted error tracking also eliminates volume-based pricing. A high-traffic application generating 100,000 error events per month could cost $80-200/month on Sentry. Self-hosted GlitchTip on a $20/month VPS handles the same volume with no per-event charges. For teams running multiple applications, the savings multiply quickly.