JavaScript Module
Runtime debugging, performance profiling, security scanning, and AI-powered code analysis
What can the JavaScript Module do?
The JavaScript Module is your complete toolkit for debugging, analyzing, and optimizing JavaScript applications. From runtime debugging to security scanning and AI-powered code analysis, this module helps you build better, faster, and more secure JavaScript applications.
Feature Categories
Runtime Debugging
Capture console errors and filter noisy vendor logs
- •Console log capture
- •Source map error mapping
- •Vendor script ignore list
- •Variable watch panel
- •Global diagnostics overlay
- •Console filter & search
- •Exception breakpoints
Network & API
Monitor fetch/XHR and export as reproducible code
- •Request/response monitoring
- •Export as cURL, fetch, Axios
- •Generate test code
- •API usage grouping
- •Error response snapshots
- •Mock & replay layer
- •GraphQL inspector
- •WebSocket monitor
Performance & Memory
Spot performance hotspots and memory leaks
- •Performance recording
- •Function hotspot detection
- •Event handler analysis
- •JS coverage viewer
- •Bundle breakdown
- •Memory leak helper
- •Heap snapshot
- •GC activity monitor
Events & Listeners
Track event storms and async patterns
- •Event map visualization
- •Event storm detector
- •Promise & async tracker
- •Unhandled rejection logger
- •Debounce/throttle inspector
- •DOM mutation monitor
- •Timer & interval tracker
Modules & Imports
Build dependency graphs and detect circular deps
- •Dependency graph builder
- •Circular dependency finder
- •Dynamic import tracker
- •Global namespace inspector
- •Feature detection viewer
- •Polyfill usage checker
Security Scanner
Find insecure patterns and client-side secrets
- •Full security scan
- •Unsafe pattern detector
- •Third-party script risk
- •Client-side secrets scanner
- •CSP compatibility check
- •XSS vulnerability scanner
- •eval() & Function() finder
- •innerHTML injection audit
Framework Tools
Inspect React, Vue, Angular components and state
- •Framework auto-detection
- •React component inspector
- •Vue component inspector
- •Angular component inspector
- •State change logger
- •SPA route tracker
- •Store inspector (Redux/Zustand)
- •Hydration mismatch checker
Testing Helpers
Generate selectors and export test code
- •Selector helper (pick element)
- •Export to Cypress/Playwright
- •WebDriver/Puppeteer templates
- •Action recorder
- •Console logging presets
- •Mock data generator
- •Assertion helper
AI Command Center
AI-powered page analysis and debugging
- •Quick analysis (page, bug, architecture)
- •Scenario-based analysis (login, checkout, mobile)
- •Semantic code search
- •Anti-pattern detection
- •Log analysis & classification
- •API schema inference
- •Test strategy blueprints
- •Performance estimator
Common Use Cases
Production Debugging
Capture and analyze console errors, map source maps, and track down production bugs with detailed logging.
API Integration Testing
Monitor network requests, export as cURL or test code, and mock API responses for integration testing.
Performance Optimization
Profile JavaScript execution, identify hotspots, analyze bundle size, and detect memory leaks.
Security Auditing
Scan for XSS vulnerabilities, detect client-side secrets, audit third-party scripts, and check CSP compliance.
AI Command Center
The most powerful feature: AI-powered analysis, debugging, and code generation with page context awareness.
Quick Analysis
Analyze This Page
Bug Investigation
Explain Architecture
Security Snapshot
Scenario-Based Analysis
- •"User Cannot Login" - AI analyzes auth flow and suggests fixes
- •"Checkout Fails" - AI investigates payment and form submission
- •"Layout Breaks on Mobile" - AI reviews responsive code
- •"Page Too Slow" - AI identifies performance bottlenecks
- •"Pre-Launch Checklist" - Comprehensive review before deployment
AI Agent Presets
Getting Started
- 1.Open the Developer's Toolkit side panel and navigate to JavaScript
- 2.Use Runtime Debugging to capture console logs and errors
- 3.Monitor network requests with Network & API tools
- 4.Run Security Scanner to identify vulnerabilities
- 5.Try AI Command Center for intelligent analysis and debugging