Build and test HTTP requests directly in your browser with a full-featured request editor
API Request Builder lets you construct and fire HTTP requests from the browser โ choose a method, enter a URL, add headers, and inspect the JSON response with status code and timing. Useful for testing REST APIs, debugging webhooks, and exploring public endpoints.
JSON Viewer
Format, validate, and interactively browse JSON dataJWT Toolkit
Decode, inspect, and generate JWT tokens โ sign with HMAC, RSA, ECDSA, and EdDSAURL Validator
Check HTTP status codes and strip tracking parameters from URLsHash Generator
Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from any textDevDeck ยฉ 2023 - 2026
100% client-side โข No data leaves your browser