Bugsink is a self-hosted error tracker compatible with Sentry SDKs. Run it on a small VPS or use EU-hosted plans from €16/month, with no per-event fees.
Category
DevOps
Pricing
Freemium, from Free (self-hosted); hosted plans from €16/month
Verified
Not yet
Last updated
July 18, 2026
Headquarters
Utrecht, Netherlands
Free PlanWeb AppAPIOpen SourceFreemiumSelf-Hosted
Overview
Bugsink is a self-hosted error tracking tool created by Klaas van Schelven, a solo Dutch developer, after he found self-hosting Sentry too resource-intensive for a client project.
It is fully compatible with Sentry's open-source SDKs, so teams can switch to Bugsink by changing only their DSN endpoint, with no application code changes required.
Key Features
Bugsink focuses narrowly on crash reporting: automatic error and exception capture, full stack traces, issue grouping, and a triage dashboard. It runs efficiently on minimal hardware, handling millions of events per month on a small VPS without requiring Redis or a separate message queue.
Pricing
Self-hosting Bugsink is always free under its Polyform Shield source-available license. For teams that don't want to self-host, a managed EU-hosted plan offers a free tier (15,000 events/month) and paid tiers starting at €16/month for 75,000 events, scaling with volume at a fraction of Sentry's per-event pricing.
Key Features
Sentry SDK compatibility — Drop-in replacement for Sentry; switch by changing only the DSN endpoint.
Lightweight self-hosted deployment — Runs on minimal hardware, such as a small VPS, without needing Redis or a queue.
EU-hosted managed plan — A GDPR-friendly hosted option running entirely within the EU.
Predictable pricing at scale — Avoids Sentry's steep per-event pricing curve at high event volumes.
Issue grouping & triage dashboard — Groups related errors and provides full stack traces and context for debugging.
Pros & Cons
Pros
Dramatically cheaper than Sentry at high event volumes
Simple to self-host on a small VPS with minimal infrastructure
Drop-in Sentry SDK compatibility with no code changes
EU data residency available on the hosted plan
Cons
Source-available Polyform Shield license, not OSI-approved open source
Narrower feature set than full Sentry (no APM, no session replay)
Small, solo-founder-led company, which carries support and roadmap risk
Hosted plan is newer and less proven at massive enterprise scale than incumbents
Pricing
Self-Hosted Free N/A
Hosted Free €0/month monthly
Hosted Starter From €16/month monthly
Frequently Asked Questions
Is Bugsink open source?
Bugsink's source is publicly available under the Polyform Shield 1.0.0 license, which is source-available but not an OSI-approved open-source license. Self-hosting is free.
Can I use my existing Sentry SDK with Bugsink?
Yes, Bugsink is compatible with Sentry's open-source SDKs; you only need to change the DSN endpoint.
How much does Bugsink cost?
Self-hosting is free. The managed hosted plan has a free tier (15,000 events/month) and paid tiers starting at €16/month.
Who built Bugsink?
Bugsink was built by Klaas van Schelven, a solo developer based in Utrecht, Netherlands, operating as Bugsink B.V.
Does Bugsink support performance monitoring or session replay?
No, Bugsink focuses specifically on error tracking rather than full observability features like APM or session replay.
Is Bugsink GDPR compliant?
The hosted version runs entirely within the EU on infrastructure set up for GDPR compliance.