Founded in 2016 in Boston, Massachusetts, LogRocket is a frontend monitoring and session replay platform for web developers that captures console logs, network requests, Redux/Vuex state, and performance metrics, with 1,000 recorded sessions free per month.
Sentry, founded in 2008 and headquartered in San Francisco, is the leading open-source error tracking and performance monitoring platform serving 100,000+ teams. It supports 40+ language SDKs, APM distributed tracing, and Session Replay, with both SaaS and self-hosted deployment.
Raygun, founded in 2013 and headquartered in Wellington, New Zealand, is an application performance platform combining crash reporting, APM, and real user monitoring in a unified solution with SDKs for iOS, Android, and Web.
Honeybadger, founded in 2012 and headquartered in the United States, is a developer-friendly application exception monitoring platform combining error tracking, uptime monitoring, and cron/check-in monitoring in one simple interface.
Rollbar, founded in 2012 and headquartered in San Francisco, CA, is a real-time error monitoring platform supporting 20+ programming languages with AI-powered error classification, deploy tracking, and deep workflow tool integrations.
Founded in 2020, Highlight is an MIT-licensed open-source full-stack observability platform combining session replay, error tracking, log management, and performance monitoring. With 8,000+ GitHub Stars and self-hosted deployment, it is ideal for frontend and full-stack web teams.
AppSignal is an APM platform founded in 2015 in the Netherlands, specializing in performance monitoring and error tracking for Ruby, Elixir, Node.js, and Python backend applications.