SuriLens: Open-Source Real-Time Execution Visualizer Launched for Node.js

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A developer has released SuriLens, an open-source observability toolkit designed to help Node.js developers visualize backend request execution in real time. The tool automatically instruments a Node.js application and displays the full execution flow — including middleware, controllers, services, and external API calls — through an interactive dashboard. Unlike traditional debugging methods that rely on scattered console logs and server logs, SuriLens traces every incoming request and presents timing, payload, and performance data visually. It uses AsyncLocalStorage-based tracing and is built to remain lightweight, while also masking sensitive data such as passwords before broadcasting trace information. SuriLens is in its first public release and is available on both GitHub and npm, with the developer inviting community feedback and contributions.

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