Error Tracking
One of the original error monitors, now under LogicMonitor — agentless setup that's still dead simple to wire up.
SmartBear's stability-score angle is genuinely useful for deciding whether a release is safe to keep out in the wild.
Speaks the Sentry SDK protocol, so you keep your existing client libraries but self-host or pay a fraction of the price.
Built by a small team for small teams — errors, uptime, and logs in one flat-priced tool without enterprise bloat.
Leans harder into real user monitoring and APM than most error trackers, handy if you want crashes and performance together.
Solid error grouping and deploy tracking, plus an AI agent that drafts the fix PR instead of just paging someone.
The default choice for a reason — open-source roots, huge SDK coverage, and the tracker everything else gets compared to.
A tiny, dependency-free agent laser-focused on frontend JS errors — skip it if you need backend coverage too.