What is Sentry?
Sentry is an application-monitoring platform covering error and exception tracking, performance/tracing, and session replay across most major languages and frameworks. Founded in 2012 out of a two-person open-source project, it is headquartered in San Francisco with additional offices in Vienna and Toronto. Sentry's core is open source, with a free self-hosted edition and a hosted SaaS offering free and paid tiers.
Read the full overview
Sources checked 27 September 2026: official website, documentation, GitHub repository, About Sentry.
SentryMonitoring & ObservabilityApplication monitoring for errors, performance and session replay
Key capabilities
- Error tracking: exception capture with stack traces, release and environment context.
- Performance monitoring: distributed tracing across services.
- Session replay: reproduce the user session around a reported error.
- Self-hosting: open-source edition deployable on your own infrastructure.
Where Sentry fits
Validate SDK coverage for your languages/frameworks, event-volume pricing at your expected scale, data-retention settings, and whether self-hosting or the SaaS plan better fits your compliance needs.
Positioning and limitations
Shortlist Sentry when you need error and performance visibility integrated with your deploy pipeline and want the option to self-host. Compare its event-volume-based pricing and retention limits against your traffic before committing to a paid plan.
Sentry's decade-plus track record and open-source core make it a common baseline for error monitoring; confirm current plan limits directly since Sentry's pricing is usage-based and changes over time.
“Application monitoring for errors, performance and session replay”
Technical details
- Access
- Self-hosted
- Source model
- Open source
- License
- Verify license
- Founded
- 2012
- Headquarters
- San Francisco, California, USA
- Pricing model
- Freemium
- API
- Available
- Version reference
- 26.9.0 ↗
- Source checked
- September 27, 2026
- Website
- sentry.io ↗
- GitHub
- Source repository ↗
What to verify
Start from the users, systems and operating responsibilities the tool needs to support.
- Confirm current features, licensing and support terms.
- Validate deployment, data location and access control.
- Test integrations, exports and recovery workflows.
Reviews of Sentry
Error tracking that actually helps4/5 starsSentry catches errors we would never find through manual testing. The stack traces with source maps, breadcrumbs showing what the user did before the error, and session replays make debugging production issues 10x faster. The free tier is enough for small projects.
Loading review form…
