# Sentry

> Sentry is an application monitoring platform built for developers - giving engineering teams real-time visibility into errors, performance bottlenecks, and crashes across web, mobile, and backend stacks. Started as an open-source side project in 2008, it now serves more than four million developers and 100,000+ organizations including Disney, Microsoft, Atlassian, and GitHub.

- **Founded:** 2012
- **Headquarters:** San Francisco, California, United States
- **Founders:** David Cramer (Co-founder & Chief Product Officer), Chris Jennings (Co-founder)
- **Team size:** ~400 employees
- **Products:** Error Monitoring, Performance Monitoring, Session Replay, Profiling, Crash Reporting (Mobile)
- **Notable:** Reached unicorn status with $1B valuation in 2021., Acquired Codecov in 2022 to fold coverage into the monitoring stack., Open-source repos with 35,000+ GitHub stars on the main project.

## Products & services

- **Error Monitoring** — Real-time error tracking across 100+ languages and frameworks with full stack traces, breadcrumbs, and context.
- **Performance Monitoring** — Distributed tracing and transaction-level performance insights, surfacing slow database queries, API calls, and bottlenecks.
- **Session Replay** — Pixel-perfect reproductions of user sessions so engineers can watch the exact path that led to a bug.
- **Profiling** — Continuous code-level profiling to find the hottest functions in production with no extra instrumentation.
- **Crash Reporting (Mobile)** — Native crash and ANR reporting for iOS, Android, React Native, and Flutter.
- **Cron Monitoring** — Catches missed, delayed, or failing scheduled jobs.
- **Codecov** — Acquired in 2022 - code coverage and test analytics integrated into Sentry.

## Achievements

- Reached unicorn status with $1B valuation in 2021.
- Acquired Codecov in 2022 to fold coverage into the monitoring stack.
- Open-source repos with 35,000+ GitHub stars on the main project.
- Adopted by more than four million developers worldwide.
- Pioneered the 'Functional Source License' (FSL) in 2023 to balance open source with commercial protection.

## Latest updates

- **2023-11** — Introduced the Functional Source License (FSL) for select Sentry products.
- **2024-04** — Launched AI-assisted issue triage and suggested fixes powered by LLMs.
- **2024-09** — Rolled out general availability of continuous profiling for backend services.
- **2025-03** — Expanded Session Replay support to native mobile platforms.

## Links

- Website: https://sentry.io
- LinkedIn: https://www.linkedin.com/company/getsentry
- Twitter/X: https://twitter.com/getsentry
- GitHub: https://github.com/getsentry
- YouTube: https://www.youtube.com/sentry-io
- Instagram: https://www.instagram.com/sentry/
- Facebook: https://facebook.com/getsentry/

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Profile page: https://yespress.io/sentry
Published by YesPress — https://yespress.io
Last updated: 2026-05-23