🗂 JSON Formatter & Validator

Paste JSON to format, minify, or validate it instantly. All processing happens in your browser.

🔒 Runs entirely in your browser — nothing is sent to any server
Input JSON
 
Output
 

When to use this

🔍
Read API responsesGot a wall of minified JSON from an API call? Format it to instantly read the structure and find the data you need.
🐛
Debug errorsValidate JSON before sending it to a server. Spot missing commas, extra brackets, or mismatched quotes instantly.
🚀
Minify for productionReduce JSON file size by stripping whitespace before embedding it in your app or sending it over the wire.
📋
Read config filespackage.json, tsconfig, AWS policies — format any config file to read it clearly.
💡 Tip: JSON requires double quotes for keys. 'single quotes' and trailing commas are common mistakes caught by Validate.