Developer Frontend Security API Docs

Building Scalable & Modern Tools

FDHL Tools
Developer Utilities

A collection of essential tools to speed up your development workflow. Built specifically for frontend, backend, and security tasks.

Developer Tools

Format, validate, and beautify your JSON data instantly with syntax highlighting.

Validate JSON structure with detailed error reporting, formatting, and minification.

Encode text to Base64 or decode Base64 back to plain text instantly.

Generate version 4 Universally Unique Identifiers (UUIDs) in bulk.

Generate secure cryptographic hashes (SHA-256, SHA-512) from text.

Markdown Previewer

Write markdown and preview it instantly with GFM (tables, code) support.

Test and evaluate regular expressions dynamically in real-time.

Send HTTP requests, debug APIs, and inspect responses quickly.

Security Utilities

Decode JWT tokens to inspect their headers, payloads, and expiration dates securely.

Create custom JWT tokens by specifying payloads, secrets, and algorithms for testing.

Frontend Generators

Generate and extract beautiful color palettes for your next project.

Gradient Generator

Create beautiful linear CSS gradients and copy the code instantly.

Tailwind Button Generator

Design beautiful Tailwind CSS buttons and copy the classes.

Box Shadow Generator

Create stunning CSS box shadows with live preview and controls.

Minify your SVG code to reduce file size for web usage.