node-inspector/node-inspector
Node Inspector
node-inspector is a web-based debugger for Node.js applications that integrates the Blink developer tools interface. It functions as a runtime profiler and inspection suite, providing a remote debugging interface to connect a local browser to a Node.js process.
The project enables live code iteration, allowing source code to be modified while the process is running and persisting those changes back to the physical file system. It also includes a JavaScript runtime profiler to monitor CPU and heap usage for identifying bottlenecks and memory leaks.
The tool covers execution flow control through breakpoints and stepping, real-time state inspection of variables and object properties, and network and console monitoring. It further supports source file filtering to manage the visibility of files and directories within the interface.
Features
- JavaScript and TypeScript Debugging - Provides a web-based interface to navigate source files, manage breakpoints, and step through JavaScript execution.
- Node.js Ecosystem - A web-based tool for inspecting and debugging Node.js applications using the Chrome DevTools interface.
- Remote Debugging - Connects a local debugger interface to a process running on a remote machine via network ports.
- Debugger Protocol Integrations - Uses the low-level V8 engine debug interface to control execution and inspect memory via the Node.js runtime.
- Debugging and Inspection Tools - Provides real-time examination of scopes and variables to verify data values and modify object properties.
- Hot Code Replacement - Enables the modification of running code on the fly with the ability to persist changes back to the physical file system.
- JavaScript Runtime Debuggers - Monitors CPU and heap usage to identify bottlenecks and memory leaks in Node.js runtime environments.
- Live Coding Environments - Allows modifying source code while the Node.js process is running to test fixes without restarting.
- Performance Profiling - Analyzes CPU usage and memory allocation in Node.js to identify performance bottlenecks and memory leaks.
- Node.js Debuggers - Finds and fixes logic errors in Node.js code by using breakpoints and stepping through execution in a web browser.
- Execution Flow Control - Enables the management of code flow using breakpoints, stepping, and resumes to isolate logic bugs.
- Real-time State Displays - Examines and modifies variables and object properties in a running Node.js process to verify application behavior.
- CPU Profilers - Analyzes CPU and heap usage patterns to identify performance bottlenecks and memory leaks within the running process.
- DevTools Interfaces - Integrates the Blink developer tools interface to provide a professional debugging visualization layer.
- Message Passing - Communicates debugger state and user commands between the Node.js process and the browser using persistent socket connections.
- Disk Persistence - Maps in-memory code changes back to the physical disk to persist live edits during a debugging session.
- Child Process Execution - Spawns the target application as a sub-process to intercept standard output and monitor the event stream.
- Debugging Tools - Debugger based on Blink DevTools.
- Node.js Frameworks and Tools - Debugging tool for Node.js.
