Local utilities
Developer and security tools
Focused browser-side utilities for formatting, encoding, hashing, testing requests, and generating safe values.
Security and cryptography
Password Generator
Create cryptographically strong, random passwords with full customization.
Token Generator
Generate secure random tokens for API keys, session secrets, and more.
UUID / GUID Generator
Generate RFC4122-compliant Version 4 UUIDs for unique identifiers.
Hash Generator
Compute MD5, SHA-1, and SHA-256 hashes for any input string.
Developer utilities
Cron Expression Builder
Visually build cron expressions and preview the next scheduled run times.
HTTP Request Tester
Build and fire cURL/HTTP requests and inspect responses — like Postman, in your browser.
Base64 Encoder / Decoder
NewEncode text to Base64 or decode Base64 strings back to plain text instantly.
URL Encoder / Decoder
NewEncode and decode URL components using encodeURIComponent / decodeURIComponent.
JSON Formatter & YAML Converter
NewFormat, minify, and convert JSON to YAML — split view editor, all locally in your browser.