CSS Color Codes Cheat Sheet: Hex, RGB, HSL Explained
Your complete reference to CSS color formats. Learn hex codes, RGB, RGBA, HSL, and HSLA with visual examples, conversion tips, and when to use each format.
Practical guides, tips, and tutorials for developers
Your complete reference to CSS color formats. Learn hex codes, RGB, RGBA, HSL, and HSLA with visual examples, conversion tips, and when to use each format.
Learn every way to generate UUIDs in JavaScript — from crypto.randomUUID() to the uuid npm package. Covers UUID versions, validation, and database best practices.
Master Markdown from scratch. Learn headers, lists, links, images, code blocks, tables, and GitHub Flavored Markdown with side-by-side examples.
Tired of Lorem Ipsum? Discover fun and practical placeholder text alternatives — from Hipster Ipsum to AI-generated content — plus when to use real copy instead.
The 10 most useful regular expressions for everyday development — email, URL, IP, phone, date, password validation and more, with breakdowns and code examples.
Stop Googling the same patterns. These 10 battle-tested regular expressions cover email, URL, IP, phone, date, password, and more — with full breakdowns and JS/Python examples.
A curated roundup of the most useful free developer tools available online — from JSON formatters and Base64 encoders to regex testers and UUID generators.
Master JSON formatting with these 10 essential tips. Learn best practices for cleaner, more readable JSON — from consistent indentation to proper validation.
Everything you need to know about Base64 encoding — how it works, when to use it, common pitfalls, and practical examples across different programming languages.
Level up your regex skills with practical patterns, debugging tips, and common mistakes to avoid. Includes examples for email, URL, and phone validation.
UUID and GUID — are they the same? Learn the differences, when to use each version, and best practices for unique identifier generation in your applications.