Practical guides, with working examples
Finish a task, understand the result, and take it into your project.
What CSS minification must preserve
Check quoted strings, custom properties, calc(), data URLs and license notices before copying a smaller stylesheet.
Read the guide →Turn Markdown release notes into an HTML file
Preview a release note with a table, checklist and code block, then copy a fragment or download a portable styled HTML document.
Read the guide →Turn one HEX color into reusable CSS variables
Keep an existing HEX color, generate coordinated shades, preview a small component and copy the palette into your stylesheet.
Read the guide →How to Decode JWT Tokens
Learn how to decode JWT tokens step-by-step. Understand header, payload, and signature components. Free online JWT decoder included.
Read the guide →Regex Basics and Testing Guide
Master regex basics with our comprehensive guide. Learn patterns, flags, and capture groups. Test your regex online with our free tool.
Read the guide →How to Generate JWT Tokens
Learn how to generate JWT tokens with custom payloads and signatures. Understand HS256 signing and token structure. Free JWT generator included.
Read the guide →YAML to JSON Conversion Guide
Convert YAML to JSON and vice versa. Learn the differences, syntax, and best practices. Free online converter included.
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