Tools
On-site experiments and external utilities — one launchpad for everything you need.
OKLCH Color Space Converter
A premium designer utility to interactively convert between HEX, RGB, and OKLCH colors, mapping directly to RainLib's design token palette.
JSON Formatter & Tree Viewer
Format, validate, minify, and explore JSON structures with a responsive interactive collapsible tree view.
Secure Password Generator
Generate highly secure, random passwords or passphrases with granular complexity controls and real-time entropy metrics.
JWT Decoder & Debugger
Decode JSON Web Tokens (JWT) in real-time, validate claim parameters, and cryptographically verify signatures using Web Crypto API.
String Compression & Base Converter
An advanced utility to compress strings (Gzip/Deflate) and perform conversions between Binary, Hex, Decimal, and UTF-8 formats.
Base64 Image & Text Processor
Encode and decode strings to/from Base64, and dynamically convert images to Base64 strings (with CSS/HTML markup) and vice versa.
Crypto & Hashing Toolkit
Perform symmetric key encryption/decryption (AES, DES, TripleDES, RC4, Rabbit) and generate common cryptographic hash checksums (MD5, SHA-1, SHA-256, SHA-512, HMAC).
WebRTC Lab
Browser-based peer-to-peer testing sandbox matching WebRTC tutorial chapters, including manual signaling and getUserMedia examples.
WebRTC Internals Guide
Explanations and guidelines for Chrome's built-in diagnosis page (accessible via chrome://webrtc-internals).
Mermaid Live Editor
Edit and preview Mermaid charts in real-time. Ideal for debugging sequences, flowcharts, and packets in blog posts.