Developer Tools That Respect Your Privacy
Format JSON, decode JWT, convert cURL, and more. All tools run 100% client-side. No signup, no tracking, completely free.
Basic
Simple, fast tools for everyday developer tasks
JSON Formatter & Validator
Format, validate, and minify JSON with tree view and detailed stats
Base64 Encode/Decode
Convert text to Base64 and back, or encode files to Base64 strings
URL Encoder/Decoder
Encode and decode URL components, parse URLs, build query strings
UUID Generator
Generate UUIDs (v4), bulk generation, and UUID validation
Timestamp Converter
Convert Unix timestamps to human-readable dates and back
HTTP Tools
Test, convert, and generate HTTP requests
Security
JWT, hashing, signatures, and authentication helpers
JWT Decoder
Decode and inspect JWT tokens, check expiration, view claims
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes and HMAC signatures
Webhook Signature Tester
Verify webhook signatures for Stripe, GitHub, Shopify, Slack, and Twilio
HTTP Status Codes
Complete reference of HTTP status codes with descriptions and examples
Advanced
Regex, cron, diff, and specialized utilities
Regex Tester
Test regular expressions with live matching, groups, and common patterns
Cron Expression Builder
Build and validate cron expressions with visual builder and parser
API Header Builder
Build HTTP headers with templates for Authorization, CORS, and caching
Text Diff Checker
Compare text side-by-side with line-level and character-level differences
Need to Test Webhooks?
HooksDash provides instant webhook endpoints, real-time request inspection, and CLI forwarding. The perfect complement to these developer tools.