Blog

Syntax differences, readability trade-offs, and a clear answer to when you should use each format.

How Base64 works, why it exists, and when you should — and should not — use it. With code examples.

What the three parts of a JWT contain, how to decode them, and what to check when debugging auth issues.

How to convert epoch timestamps in JavaScript, Python, SQL, and the command line — with the pitfalls to avoid.

UUID versions explained, when to use them as database primary keys, and how to generate them in code.

Conventions for writing readable SQL — indentation, capitalisation, JOINs, aliases, and subqueries.

Copy-ready cron expressions for every common schedule with plain English explanations.

Every method for validating JSON — online, command line, and in code. Covers common errors and how to fix them.