NetPulse

The network tab that thinks. Capture, replay & analyze API calls with AI insights, CORS detection & more.

# NetPulse — Store Description ## Category Developer Tools ## Short Description (132 chars) The network tab that thinks. Capture, replay & analyze API calls with AI insights, CORS detection & more. ## Detailed Description NetPulse — The network tab that thinks. A powerful, zero-config developer tool that captures all API traffic from any browser tab and gives you AI-powered insights — without leaving your browser. ### WHAT IT DOES • Captures every HTTP request with headers, body, timing, and status • Intercepts full response bodies from fetch and XHR calls • Analyzes your traffic with AI — detects patterns, anomalies, and performance issues • Generates an API Health Score (0-100) with actionable recommendations • Scans for security vulnerabilities (tokens in URLs, missing HTTPS, exposed data) • Maps which page sections are powered by which APIs (UI Data Map) • Provides ready-to-use AI prompts for design, testing, debugging, and deployment ### KEY FEATURES → Request Replay: Edit and re-send any captured request → CORS Detector: Identifies issues with server fix suggestions → Security Scanner: Finds vulnerabilities in your API traffic → Dependency Map: Visualizes API call chains as sequence diagrams → JWT Decoder: Decode tokens from Authorization headers → Code Generator: JavaScript, Python, C#, Java, Go, PHP, Ruby, Playwright → OpenAPI Spec & Postman Collection export → Response Diff: Compare two responses side by side → API Mocking: Return custom responses for matched URLs → Full-text search across all captured data → Data Model (ERD) generation with Mermaid export → Dashboard Suggestions with Fluent UI component references → AI Prompts Library with 16+ ready-to-use developer prompts → Over-Fetching Analysis: See how much data is fetched vs used → Third-Party Risk Map: Track external service dependencies → Data Freshness: Audit cache headers across all responses → Page Weight Budget: Monitor total API payload size ### THREE THEMES ☀️ Light • 🌙 Dark • 💎 Glass ### PRIVACY FIRST All data stays in your browser. Nothing is transmitted externally. No accounts, no tracking, no cloud. Works completely offline. ### WHO IS THIS FOR • Frontend developers debugging API integrations • Backend developers testing endpoints • QA engineers validating API contracts • Security engineers auditing CORS and auth flows • Anyone who wants to understand what their web apps are doing under the hood