API & Network Tools
HTTP clients, API testers, WebSocket debuggers, and network utilities — test and debug your APIs without leaving the browser.
📮 Postman
The most popular API platform. Build, test, and document APIs with an intuitive GUI. Supports REST, GraphQL, and WebSocket.
🦘 Hoppscotch
Open-source API development platform. Lightweight, fast, and works entirely in the browser with PWA support.
😴 Insomnia
Desktop API client for REST and GraphQL. Beautiful interface with environment variables and code generation.
🥧 HTTPie
User-friendly HTTP client for the terminal and desktop. Human-readable output with syntax highlighting.
🌀 cURL
Command-line tool for transferring data with URL syntax. Supports HTTP, FTP, SMTP, and dozens of protocols.
🔗 URL Encoder/Decoder
Encode and decode URL strings. Handle query parameters, path segments, and international characters correctly.
🎭 Mockoon
Create mock REST APIs in seconds. No deployment, no account needed. Perfect for frontend development and testing.
🕳️ ngrok
Expose local servers to the internet with a single command. Secure tunnels for development, testing, and demos.
🔌 WebSocket Tester
Connect to WebSocket servers and send/receive messages. Real-time testing with message history and JSON formatting.
🐝 Beeceptor
Zero-coding REST API mocking and intercepting. Inspect HTTP traffic, simulate delays, and test error scenarios.
⚡ RapidAPI
World's largest API marketplace. Discover, connect, and manage thousands of APIs with a single SDK and dashboard.
📐 Swagger Editor
Design and document REST APIs with OpenAPI spec. Real-time preview, code generation, and validation.
🔷 GraphQL Playground
Interactive GraphQL IDE in the browser. Auto-completion, schema explorer, and query history for GraphQL APIs.
📦 JSONPlaceholder
Free fake REST API for testing and prototyping. Ready-to-use endpoints for posts, users, comments, and more.
📬 RequestBin
Inspect HTTP requests and webhooks in real time. Create a URL endpoint and see exactly what's being sent.