Application error monitoring for multiple languages and frameworks. Free tier includes 5,000 error events per month, perfect for personal and small projects.
Sentry is an error monitoring platform. When your app throws an exception, Sentry captures it and sends it to your dashboard with stack traces, frequency, and affected users. Supports JavaScript, Python, Go, iOS, and many more.
I added Sentry to a Next.js app with a few lines of code. After launch, every backend error appeared in the Sentry dashboard with full stack traces and request parameters. Debugging time dropped from hours to minutes.
Sentry is a lifesaverβyou can fix bugs before users even notice.
Pro tip: Sentry also offers performance monitoring (page load, API response). Basic features are included in the free tier.