Sentry
Error tracking that actually helps
Observability / Error Tracking · Source-available · 45.6k
Reviewed 2026-08-19 · last push 2026-10-21 · repo checked 2026-10-21
What's Good
Stack traces with source maps make debugging possible. Release tracking ties errors to deploys. Performance monitoring covers web vitals. Session replay shows what users experienced.
The Catch
License first: Sentry is under FSL-1.1 (Functional Source License, converting to Apache-2.0 after two years) — source-available, not OSI open source; you may self-host for your own use but not offer a competing service. Event volume drives cost. Self-hosting is complex. Some features are enterprise-gated. Alert noise requires tuning.
Verdict
The error tracking service most teams use.
Embed
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Markdown
[](https://stackgems.com/gems/sentry)
HTML
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