The Developer's Guide to Color Contrast and Accessibility
Poor color contrast makes your site unusable for millions of people — and fails legal compliance. Learn WCAG contrast ratios, how to test them, and fix failures fast.
Read ArticleArchive
February 2026
All articles published in February 2026.
How 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 ArticleBCrypt Hashing Explained: Why It's the Gold Standard for Passwords
BCrypt is deliberately slow — and that's the point. Learn why fast hashing algorithms are wrong for passwords, how BCrypt works, and how to use it correctly in your apps.
Read ArticleTry the tools yourself — free.
Format, encode, generate, and convert — everything runs client-side. No account needed.