Highlight

Bug reports rarely explain themselves. highlight.io closes that gap by pairing every error with the recorded session that produced it, an open source fullstack monitoring platform covering session replay, error monitoring, logging and traces.

Installation is meant to be a few lines of code in any environment, using the client and server SDKs that ship in the repository. Session replay is powered by rrweb, and the same instrumentation feeds errors, logs and traces, so each signal links back to the others instead of living in a separate tool.

The product groups its work into connected surfaces.

• Session replay: replays every interaction and DOM change in a browser session, with the network requests and console output alongside.
• Error monitoring: groups repeated errors under rules you customize and links each one to the sessions where it happened.
• Logging: searches across server logs with automatic property collection and threshold based alerts.
• Tracing: measures the performance of server operations, correlated with the sessions, errors and logs around them.
• Comments: let teammates annotate a session so bugs and user frustration get discussed in place.

A hobby instance deploys in one line with Docker on Linux, and the maintainers suggest at least 8 GB of memory, four CPUs and 64 GB of disk. That tier fits under 10,000 sessions and 50,000 errors ingested monthly; heavier installs follow the enterprise self-hosting path, and a hosted version exists for teams who would rather not run it themselves.