Replay frontend sessions and investigate errors with application traces.
100% free open-source self-hosted (Apache-2.0) or free cloud tier (500 sessions/mo).

Developer tools
Model Context Protocol server feeding browser console logs, failed network requests, and runtime DOM errors directly to coding agents.
Model Context Protocol server feeding browser console logs, failed network requests, and runtime DOM errors directly to coding agents.
Client-side console error tracking, network failure capture, and DOM debugging for web developers without monthly SaaS session limits.
Requires running the MCP server locally alongside your browser and compatible AI assistant.
Each comparison covers the workflow described above, rather than every paid feature.