Reference

Guides

Practical notes for the tools and formats TheDevTab handles. Examples stay close to the browser-only workflows on this site.

• How to format and validate JSON

  A practical guide to making JSON readable, finding syntax errors, and knowing what validation does not prove.

• JSON vs YAML

  Compare JSON and YAML syntax, tradeoffs, and the situations where converting between them is useful.

• JWT decoded vs verified

  Understand what a decoded JWT reveals, what signature verification proves, and how to read time claims safely.

• UUID v4 vs v7

  Choose between random UUID v4 and time-ordered UUID v7 for identifiers, databases, and event records.

• Convert JSON to CSV without Excel

  Turn an array of JSON objects into a usable CSV file, including nested values, missing keys, and formula-safe export.

• Unix timestamps explained

  Learn the difference between Unix seconds and milliseconds, how UTC fits in, and how to inspect JWT time claims.