The best open source alternative to Bugsink is Sentry. If that doesn't suit you, we've compiled a ranked list of other open source Bugsink alternatives to help you find a suitable replacement. Other interesting open source alternatives to Bugsink are: HyperDX and Highlight.
Bugsink alternatives are mainly Performance Monitoring (APM) Tools but may also be Error Tracking Tools or Log Management Tools. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Bugsink.
Detect, diagnose, and resolve software issues quickly with powerful error tracking, performance monitoring, and release management.

Sentry is a powerful developer-first application monitoring platform that helps teams identify, triage, and resolve software errors and performance issues in real-time. With its comprehensive suite of tools, Sentry enables developers to:
By providing real-time visibility into your application's health, Sentry helps teams reduce downtime, improve user experience, and ship better code faster. Whether you're working on web, mobile, or desktop applications, Sentry's robust features and intuitive interface make it an essential tool for modern software development and operations.
Open source observability platform unifying session replays, logs, traces, metrics and errors. Fast search, automatic clustering, $0.40/GB pricing.

Open source observability platform that unifies session replays, logs, traces, metrics and errors into a single view - all without the expensive Datadog price tag. Recently acquired by ClickHouse to accelerate open source observability innovation.
Key capabilities include:
Developer-friendly features:
Transparent pricing at $0.40 per GB with no per-user or per-host fees makes enterprise-grade observability accessible to teams of all sizes. Trusted by high-velocity engineering teams for resolving production issues fast.
Comprehensive monitoring solution offering error tracking, session replay, and performance insights for seamless debugging and optimization.

Highlight is a powerful observability platform designed to revolutionize how developers monitor and debug web applications. By combining error tracking, session replay, and performance monitoring in a single, intuitive interface, Highlight provides unparalleled insights into your application's behavior.
Key benefits of Highlight include:
Highlight empowers development teams to identify, prioritize, and resolve issues faster, leading to improved application stability and enhanced user experiences. With its comprehensive feature set and user-friendly interface, Highlight is the go-to solution for modern web application observability.