Resources
Practical developer guides
Clear explanations for the formats, protocols, and workflows behind the tools.
How to Format JSON
Format JSON safely, understand indentation, and diagnose the syntax errors that break parsers.
6 min readJSON vs JSON5: What’s the Difference?
Compare strict JSON with the more forgiving JSON5 format and choose the right one for your data.
5 min readHow to Decode a JWT
Understand JWT segments, inspect claims, and avoid confusing decoding with signature verification.
7 min readBase64 Encoding Explained
Learn how Base64 represents bytes as text, when it is useful, and why it is not encryption.
6 min readHow URL Encoding Works
Understand percent encoding, reserved characters, and the difference between a URL and one URL component.
6 min readUUID v4 Explained
Learn how random UUIDs are structured, generated, and used safely in applications.
5 min readHow to Test Regular Expressions
Build regular expressions incrementally and avoid performance and portability mistakes.
7 min readUnix Timestamp Explained
Understand epoch seconds, milliseconds, time zones, and reliable timestamp conversion.
6 min readCommon JSON Syntax Errors
Recognize trailing commas, invalid quotes, unescaped characters, and other JSON parsing failures.
6 min readHow to Convert JSON to CSV
Turn flat JSON records into reliable CSV while handling headers, commas, quotes, and missing values.
7 min readJSON vs YAML: Differences and When to Use Each
Compare JSON and YAML syntax, strictness, and tooling, and learn which format fits APIs, configuration, and CI pipelines.
6 min readHow to Compare Two JSON Objects
Compare JSON documents reliably by normalizing formatting first, and understand why key order and number formats affect a diff.
5 min readJWT Explained for Beginners
Understand what a JSON Web Token is, what its header, payload, and signature contain, and the security mistakes to avoid.
7 min readHow Regular Expressions Work
Learn the building blocks of regular expressions — character classes, quantifiers, anchors, and groups — with practical JavaScript examples.
8 min readHTTP Status Codes Explained
A practical guide to HTTP status code classes and the codes you meet most often, including the 401 vs 403 and 502 vs 504 differences.
7 min readCommon API Debugging Techniques
A step-by-step approach to debugging failing API requests: status codes, headers, payloads, authentication, encoding, and timing.
8 min read