Free · no account · browser only
JSON Formatter
Beautify, minify, and validate JSON in your browser. Indent with 2 spaces, 4 spaces, or a tab. Free, no account.
Your JSON stays in this browser · nothing uploaded · no account
/json-formatter
How it works
Paste JSON, pick an indent, then format, validate, and copy.
- 1
Paste
Paste JSON into the input area.
- 2
Indent
Pick 2 spaces, 4 spaces, or Tab.
- 3
Format
Click Format or Beautify to pretty-print.
- 4
Validate
Confirm the JSON. Errors show with a line number.
- 5
Copy
Copy or Download the output.
Frequently Asked Questions
How formatting works, and what this page does not do.
Does this need an account?
No. The formatter runs in this browser. Nothing is uploaded. No account is required.
How do I choose indentation?
Pick 2 spaces, 4 spaces, or Tab, then click Format. Beautify always uses 2 spaces.
What does Validate show?
Validate checks the paste. Errors show with a line number. Valid JSON shows a success message.
What is Minify for?
Minify removes whitespace so the JSON is compact for APIs and storage. It does not change the values.
How do I save the output?
Copy puts the output on the clipboard. Download saves a file named formatted.json.
Is this a schema designer or AI rewriter?
No. This page formats, minifies, and validates JSON you paste. It does not design schemas, rewrite with AI, or edit a tree.