JSON formatter
Paste JSON, then pretty-print or minify it. Errors point at what's wrong.
What is JSON formatter?
JSON (JavaScript Object Notation) is the standard format for data exchanged between APIs and web apps — this pretty-prints it for readability, minifies it to save space, or just validates that it's syntactically correct.
How to use it
Paste JSON and click Pretty-print for indented, human-readable output, or Minify to strip all whitespace for production use. Validation errors point at exactly what's wrong.
Example
{"name":"Alex","role":"admin"} pretty-printed becomes:
{
"name": "Alex",
"role": "admin"
}