Sentry
FeaturedApplication monitoring that helps every developer diagnose, fix, and optimize the performance of their code.
Founded in 2012 by David Cramer and Chris Jennings in San Francisco, Sentry was built as an open-source error tracking tool after David grew frustrated with the lack of good crash reporting tools at DISQUS. What started as a side project quickly grew into the most widely used error monitoring platform in the world. Sentry raised $90 million in 2021 at a $1 billion valuation and serves over 4 million developers and 90,000 organizations including GitHub, Cloudflare, Disney, and Microsoft. The platform ingests over 15 billion events per day and has expanded from error tracking into a full application monitoring suite covering performance monitoring, session replay, profiling, and AI-powered root cause analysis. Sentry remains deeply committed to its open-source roots with its entire codebase publicly available on GitHub.
Active Founders
David Cramer
Founder / CEO
David Cramer is the co-founder and CEO of Sentry. He originally created Sentry as an open-source side project while working as an engineer at DISQUS, frustrated by the inadequacy of existing error tracking tools. He has maintained an unusually strong commitment to open source throughout Sentry's commercialization, keeping the entire product codebase public on GitHub. David is one of the most respected figures in the developer tools community and a frequent speaker on open-source business models and engineering culture.
Sentry