Developer Guides & Tips
Practical guides for developers — JSON, JWT, regex, encoding and more.
JSONMay 1, 2026·5 min read
How to Format JSON Online — A Complete Guide
Learn what JSON is, common JSON errors and how to format and validate JSON instantly.
SecurityMay 2, 2026·6 min read
What is a JWT Token? A Simple Explanation
JSON Web Tokens explained simply. Learn what JWT is, how it works and how to decode one.
RegexMay 3, 2026·8 min read
Regular Expressions Guide for Developers
A practical guide to regex. Learn the most common patterns with real examples.
EncodingMay 4, 2026·5 min read
Base64 Encoding Explained — What It Is and When to Use It
Learn what Base64 encoding is, how it works and when developers use it.
PrivacyMay 12, 2026·6 min read
Stop Uploading Your Sensitive PDFs to Random Websites
Your PDF files contain sensitive data. Learn why uploading to online tools is risky and what browser-based alternatives to use instead.