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Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Open-source fullstack monitoring with session replay and error tracking
Modern monitoring platform combining session replay, error tracking, logging, and traces in one cohesive solution. Built for developers who need deep visibility into frontend and backend issues.
highlight.io is a fullstack monitoring platform designed to replace outdated, fragmented observability tools. It unifies session replay, error monitoring, logging, and distributed tracing into a single cohesive experience, giving developers complete visibility from user interactions to backend operations.
The platform captures high-fidelity DOM-based session replays powered by rrweb, showing every user interaction, network request, and console log. Error monitoring features customizable grouping and alerting rules, while embedded session replay provides context for every error. Server-side logging and tracing capabilities offer powerful search across properties, with automatic correlation to frontend sessions and errors.
highlight.io offers three deployment options: a hosted cloud service (free to start), a hobby self-hosted instance via Docker for smaller workloads (<10k sessions, <50k errors monthly), and enterprise self-hosted deployments for production-scale needs. Installation requires just a few lines of code across supported SDKs, making integration straightforward regardless of your stack.
When teams consider highlight.io, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Debugging User-Reported Bugs
Replay exact user sessions showing interactions, network calls, and console logs leading to errors, eliminating guesswork in reproduction.
Correlating Frontend Errors to Backend Issues
Trace errors from browser sessions through backend logs and traces to identify root causes across the entire stack in one platform.
Self-Hosted Monitoring for Compliance
Deploy monitoring infrastructure on-premises or in private cloud to maintain data sovereignty while gaining modern observability features.
Proactive Performance Monitoring
Set custom alert thresholds on logs and traces, then investigate alerts with embedded session replay and error context for rapid resolution.
Three options: hosted cloud (free tier available), hobby self-hosted via Docker for <10k sessions and <50k errors monthly, and enterprise self-hosted for production-scale deployments with support.
The hobby Docker deployment requires at least 8GB RAM, 4 CPUs, and 64GB disk space. Enterprise deployments have different requirements based on scale.
highlight.io uses rrweb to capture DOM-based high-fidelity replays of user sessions, including interactions, network requests, console logs, and errors without video recording.
Yes, highlight.io automatically links sessions, errors, logs, and traces, allowing you to see backend activity associated with any frontend session or error.
highlight.io supports a growing list of SDKs for frontend and backend languages. Check the sdk directory in the repository or the getting started guide in the documentation for current SDK availability.
Project at a glance
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