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OKLCH and Modern CSS Colour

Why OKLCH describes colour by lightness, chroma and hue in a perceptually uniform space, and how that makes readable palettes and predictable tints.

The Markdown Syntax Guide

A practical guide to Markdown: headings, lists, links, code, tables and the whitespace rules that trip people up, plus how flavours differ.

JWT vs Session Cookies: Choosing an Auth Approach

JWTs are stateless and self-contained; session cookies are stateful and server-tracked. Learn the trade-offs in revocation, storage, and size.

JSONPath Explained: Querying JSON by Path

A practical guide to JSONPath: how the syntax maps onto a JSON document, what each operator does, and the pitfalls to watch for.

ISO 8601 Date and Time Format, Explained

What ISO 8601 actually specifies: the YYYY-MM-DD date, the T separator, the Z and offset suffixes, durations, and why it sorts and parses cleanly.

HTML Entities: A Quick Reference and How They Work

HTML entities are text codes that stand in for reserved or awkward characters. What they are, when you must use them, and a reference of the…

How to Minify JSON (and When You Should)

What JSON minification actually removes, how much it saves, when it helps, and when a pretty-printed file is the better choice.

How to Generate a QR Code (and How They Work)

How QR codes encode data, what error correction and the quiet zone do, which versions and modes exist, and how to make one that scans reliably.

How to Create a Strong Password

A strong password is long, random, and unique to one account. Here is why those three properties matter more than symbols and clever substitutions.

How SHA-256 Works, in Plain Terms

SHA-256 pads a message, splits it into 512-bit blocks, and mixes each into a 256-bit state through 64 rounds. A plain walkthrough of every stage.