JSON Formatter Guides
Format, validate, minify & explore JSON. 100% private, in-browser.
How to Fix Common JSON Syntax Errors
The most frequent JSON mistakes — trailing commas, single quotes, missing brackets — and exactly how to fix each one.
JSON Formatting Best Practices for Developers
Conventions that keep JSON readable and diff-friendly — indentation, key ordering, when to minify, and how to keep payloads private.
What Is JSON? A Beginner's Guide with Examples
What JSON is, why it's everywhere, its data types and syntax rules, and how it compares to XML — explained simply with examples.