CSS Grid Cheatsheet: Every Property With Visual Examples
The complete CSS Grid reference — every container and item property explained with practical examples, common layout patterns, and a free visual Grid generator.
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Web Development
Practical web development tips — HTML, CSS, JavaScript, APIs, performance and developer workflow.
What Is CORS and How Do You Fix It? A Plain-English Guide
CORS errors block your fetch requests before they reach your code. Learn why the browser enforces the Same-Origin Policy, how preflight requests work, and how to fix every common CORS error on Apache, nginx, Node, and PHP.
Read ArticleThe .htaccess Cheatsheet: Redirects, Security Headers, and More
.htaccess is the Apache config file that controls redirects, security headers, custom error pages, and access rules. Learn the most useful directives and generate them free.
Read ArticleCSS Specificity Explained: Why Your Styles Keep Getting Overridden
CSS specificity is the algorithm that determines which style wins when multiple rules target the same element. Understand it once and CSS becomes far less frustrating.
Read ArticleHow to Generate Favicons for Every Device (And Why It Matters)
A favicon isn't just one file anymore — modern sites need dozens of sizes for browsers, mobile home screens, and PWAs. Learn what you need and generate them all instantly free.
Read ArticleSVG Optimization: Why Your SVGs Are Too Big and How to Fix Them
SVG files exported from design tools are bloated with unnecessary metadata. Learn what makes SVGs large, what's safe to remove, and optimize them instantly free in your browser.
Read ArticleCSS px vs rem: Why You Should Stop Using Pixels for Font Sizes
Pixels ignore the user's browser font size preference — rem doesn't. Learn the difference between px, rem, and em in CSS, when to use each, and convert values instantly free.
Read ArticleHow to Build a Robots.txt File That Won't Accidentally Block Google
A misconfigured robots.txt can deindex your entire site overnight. Learn the syntax, common mistakes, what to block and what not to, and generate one correctly free.
Read ArticleCSS Border Radius: The Complete Visual Guide
CSS border-radius goes deeper than rounded corners. Learn every syntax variant, how to create pills, circles, and asymmetric blob shapes, plus a free visual generator.
Read ArticleThe Complete Guide to Open Graph Tags for Social Sharing
Open Graph tags control how your pages look when shared on Facebook, LinkedIn, Slack, and more. Learn every tag, the right image sizes, and generate them instantly free.
Read ArticleCSS Grid vs Flexbox: When to Use Each (With Visual Examples)
Grid and Flexbox solve different layout problems — and knowing which to reach for saves hours of fighting CSS. Here's how to choose, with practical examples of each.
Read ArticleCSS Flexbox Cheatsheet: Every Property Explained With Examples
The complete CSS Flexbox reference — every container and item property explained with practical examples, common layout patterns, and a free visual Flexbox tool.
Read ArticleHow to Use the Meta Tag Generator to Improve Your SEO Instantly
Meta tags control how your pages appear in search results and social shares. Learn which tags matter, what to write in them, and generate a perfect set in seconds.
Read ArticleCSS Box Shadow: A Complete Guide With a Visual Generator
Master CSS box-shadow — every parameter explained, layered shadows, inset shadows, common design patterns, and a free visual generator to build them without guessing.
Read ArticleTry the tools yourself — free.
Format, encode, generate, and convert — everything runs client-side. No account needed.