The best Error Tracking & Exception Monitoring
Every option ranked — open-source, self-hostable, and commercial — by our transparent Sovereignty Score, with honest trade-offs so you choose what fits you, not us.
Tools that capture, group, and alert on application exceptions and crashes — the first layer of observability most teams adopt, distinct from full infrastructure/APM observability.
L3Infrastructure — layer 3 of the AI stack- 1
GlitchTip
Top pickOpen sourceA lightweight, fully open-source, Sentry-SDK-compatible error tracker.
Free to self-host; optional hosted plans from $0 (1K events/mo) to $250/mo (3M events/mo) · in our Sentry comparison →
What is GlitchTip? →93sovereignty - 2
HyperDX
Open sourceAn OpenTelemetry-native observability app with error tracking, logs, traces, and session replay in one.
Free to self-host; hosted plan free up to 3GB/mo, then $20/mo for 50GB/mo plus $0.40/GB overage · in our Sentry comparison →
What is HyperDX? →89sovereignty - 3
Bugsink
CommercialA minimal, actively-maintained self-hosted error tracker built to be a drop-in Sentry replacement.
Free to self-host; hosted plan also available, positioned as ~80% cheaper than Sentry at scale · in our Sentry comparison →
What is Bugsink? →81sovereignty
Is it free?
The free tier, its real limits and where you start paying — read from each vendor's own pricing page and dated.
Run these yourself
What each one actually needs — real RAM, honest running cost, and the setup time nobody quotes.
- Self-hosting GlitchTip 2 GB
- Self-hosting HyperDX 8 GB. Four services share the box — ClickHouse, the HyperDX app, the OpenTelemetry collector and MongoDB — and ClickHouse's own sizing guide says total memory should not go below 8 GB.
Replacing a specific tool?
Head-to-head comparisons for each popular error tracking & exception monitoring product.
Straight head-to-heads
Two error tracking & exception monitoring tools, side by side — verified facts and a plain verdict.