Blog
Practical articles about developer tools, encoding, security, and the web.
2025-10-15
How to Create a Strong Password
Most people know passwords should be strong, but few know what that actually means. Here is a practical guide to creating passwords that hold up against modern attacks.
Read more →2025-10-22
What Is Base64 Encoding and When Should You Use It?
Base64 appears everywhere in web development — JWT tokens, email attachments, data URLs — but it is frequently misunderstood. Here is what it actually does and when to use it.
Read more →2025-11-05
URL Encoding Explained
URL encoding — or percent-encoding — is one of those things every developer encounters but few fully understand. Here is a complete, practical explanation.
Read more →2025-11-12
JSON Formatting Best Practices
JSON is the dominant data format on the web, but it has strict rules and common pitfalls. Here is a guide to writing clean, valid JSON.
Read more →2025-11-19
What Is a UUID and When Should You Use One?
UUIDs are everywhere in software — database primary keys, correlation IDs, session tokens. This guide explains the format, the versions, and when UUIDs are the right tool.
Read more →2025-12-03
Regular Expressions: A Practical Beginner's Guide
Regular expressions look intimidating, but a small set of patterns covers most real-world uses. This guide walks through the core syntax with practical examples.
Read more →2025-12-10
How JWT Authentication Works
JSON Web Tokens are the backbone of stateless authentication in modern web apps. This guide explains the structure, the signing process, and the security concerns you need to know.
Read more →2025-12-17
CSV vs JSON: When to Use Each Format
CSV and JSON are both ubiquitous data formats, but they serve different use cases. Understanding the trade-offs will help you pick the right one for every situation.
Read more →2026-01-07
HTML Special Characters and Entities: A Complete Guide
HTML entities let you display characters that would otherwise confuse the parser. This guide covers the most common ones, why they exist, and when you actually need them.
Read more →2026-01-14
Unix File Permissions Explained
The rwxr-xr-x you see in ls output is not arbitrary — it encodes a precise permission model. This guide explains what it means and how to use chmod correctly.
Read more →2026-01-21
How QR Codes Work
QR codes are everywhere, but how do they actually store and encode data? This guide explains the structure, error correction, and encoding behind the ubiquitous black-and-white squares.
Read more →2026-01-28
Markdown Syntax Guide: Everything You Need to Know
Markdown is the writing format of the web — used in GitHub, documentation sites, note-taking apps, and chat platforms. This guide covers the full syntax with examples.
Read more →2026-02-04
How Version Control Diffs Work
When git shows you a diff, it is doing more than highlighting changes. Understanding the algorithm behind diffs makes you better at reading them and resolving conflicts.
Read more →2026-02-11
Understanding Character Encoding: ASCII, Unicode, and UTF-8
Character encoding bugs — garbled text, question mark boxes, mojibake — all have the same root cause. This guide explains how character encoding works and how to avoid these problems.
Read more →2026-02-18
What Is a REST API?
REST is the architectural style behind most of the web's APIs. This guide explains the core principles, HTTP methods, status codes, and what makes an API truly RESTful.
Read more →2026-02-25
DNS Explained: How Your Browser Finds Websites
Every time you type a URL, DNS translates it to an IP address. This guide explains the full resolution process, record types, and why DNS problems cause so much internet trouble.
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