Articles & Guides
Practical how-tos, tips, and tutorials to help you get more from our tools.
22 articles · Page 2 of 3
QR Codes Beyond Links: Creative Uses for Business and Everyday Life
QR codes do far more than open URLs. Discover practical uses for Wi-Fi sharing, vCards, payments, event tickets, and more.
SSH and RSA Keys Explained: Generate, Use, and Secure Your Key Pairs
A practical guide to SSH and RSA key pairs — how they work, how to generate them in your browser, and how to use them for secure server access and encryption.
CSS Tools Every Developer Should Know About
Gradients, box shadows, color contrast, Tailwind conversion — a practical guide to browser-based CSS tools that speed up front-end development.
Image Optimization for the Web: A 2026 Performance Guide
Learn how to compress, resize, and convert images for faster websites — without sacrificing visual quality.
Regular Expressions for Beginners: Patterns That Actually Make Sense
A friendly introduction to regex syntax, common patterns for validation and search, and how to test expressions without frustration.
Strong Passwords in 2026: A Short Checklist for Real Humans
Length vs complexity, password managers, MFA, and how to test strength without sending secrets to a server.
SSL/TLS Certificates Explained (Without the Jargon)
What HTTPS certificates do, why browsers warn you, and how to check expiry and chain issues on your own domains.
From CSV to JSON: Working with Tabular Data in APIs
How to turn spreadsheets into JSON for APIs, watch out for headers and quoting, and validate payloads before you ship.