Base64 vs Hex Encoding: 5 Mistakes + Easy Fixes
Confused by base64 vs hex encoding? See the same bytes in both encodings, the 33% vs 100% overhead math, 5 mistakes to avoid, and when to use each one.
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How to Decode JWT Token: A Beginner’s Easy Anatomy Guide
Learn how to decode jwt token by hand: header.payload.signature anatomy, a sample decoded step by step, and two security warnings most guides bury.
Strong Memorable Passwords: The 4-5 Word Method
Learn how to create a strong memorable password with the random-word passphrase method — long, unique, memorable, plus honest advice on managers and MFA.
What Is Unix Timestamp? Easy Guide to 10 vs 13 Digits
What is Unix timestamp? A plain guide with real computed examples: 10-digit vs 13-digit epoch time, UTC gotchas, and converting timestamps to dates.
Regex Cheat Sheet: 4 Proven Patterns + The Complete Basics
Regex cheat sheet with tested real-world patterns: email, URL, date, phone, IP — plus quantifiers, groups, anchors, and one backtracking trap to avoid.
What Is SHA256 Hash? 3 Properties of This Proven Fingerprint
What is SHA256 hash used for? Learn how this 64-character fingerprint verifies downloads, how checksums work, SHA-256 vs MD5, and two honest caveats.
What Is URL Encoding? The Easy Guide to %20 and 2 Functions
What is URL encoding? A plain-English guide to %20, + vs %20, the 2 JavaScript encoding functions, and how to spot and fix double-encoding bugs fast.
What Is JSON Formatter? 4 Things This Easy Tool Does
Wondering what is JSON formatter software? A beginner walkthrough covering 4 jobs — format, validate, fix a trailing comma, and minify — all in your browser.