@jsonviewertool1

What Is JSON? Complete Beginner's Guide (With Examples)

13h ago · 3 min read · JSON is the most popular data format used in APIs, configuration files and modern web apps. In this guide, you'll learn what JSON is, how it works, and how to view and format JSON easily. What is JSON

JSON vs XML - Which One Should You Use in 2025?

13h ago · 3 min read · JSON and XML are two of the most popular data formats. In this article, we compare them and help you decide which one to use in 2025. What is JSON? JSON (JavaScript Object Notation) is a lightweight,

JSON Payload Size: How to Measure It (and Shrink It)

13h ago · 4 min read · Why .length lies about your payload size, the limits you'll actually hit, and the three changes that genuinely shrink JSON. The first time a JSON payload bit me, it was a 413 Payload Too Large in prod

How to Decode JWT Tokens Safely (Without Sending Them to a Server)

13h ago · 2 min read · JSON Web Tokens (JWT) are everywhere in modern authentication. Here's how to inspect them safely without leaking sensitive data. What is a JWT? A JSON Web Token (JWT) is a compact, URL-safe token form

How to Compare Two JSON Files (and Read the Diff Correctly)

14h ago · 4 min read · Why stringify-equality lies, the gotchas that fool naive diffs (key order, array order, types), and how to read a semantic diff. A test of mine once failed because two API responses "didn't match" --