Sentry
Error and performance monitoring with SDKs for most languages, also self-hostable.
More in Error tracking
BugsinkError tracker that accepts events from Sentry SDKs, hosted or self-hosted.5,000 errors/mo
BugsnagError and crash monitoring for web, mobile and backend apps.2,000 errors/mo
CatchJS.comError tracking for JavaScript with screenshots and the clicks leading up to each error.
DeadBroPerformance monitoring for Rails: traces, slow queries, N+1 detection and errors.50,000 requests/mo
elmah.ioError logging and uptime checks for web apps, notably .NET.
EmbraceMobile app performance and crash monitoring by user session.1M sessions/yrEverframeBug tracker and crash collector with AI triage for apps on phones, browsers, TVs and Roku.1,000 monthly active installs
exceptionlessEvent reporting for errors, logs and feature usage, open to self-hosting.3,000 events/mo