Developer Guides
Practical, in-depth articles on the data formats and encodings developers work with every day. Each guide explains how something works, when to use it, and the pitfalls to avoid — paired with the DevFmt tools that put it to use.
JSON Formatting Best Practices for APIs and Config Files
Practical JSON formatting guidance: indentation, key ordering, validation, minification, large files, and security for APIs and config.
5 min readJSON vs YAML vs CSV: Choosing the Right Data Format
A practical comparison of JSON, YAML, and CSV for developers: strengths, weaknesses, type gotchas, and when to use each format.
6 min readBase64 Encoding Explained: What It Is and When to Use It
A developer's guide to Base64: how binary-to-text encoding works, real-world uses, URL-safe variants, and why it is not encryption.
5 min readUnderstanding JWTs: Structure, Claims, and Security
Learn how JWTs work: their three-part structure, standard claims, signing algorithms, and the security pitfalls every backend developer must avoid.
6 min readA Practical Guide to Regular Expressions
Learn regex from the ground up: character classes, quantifiers, groups, flags, real examples, and pitfalls to avoid in JavaScript.
8 min read