Free JSON Tools Online
Format, validate, minify, compare, and convert JSON — all in your browser. No sign-up, no data sent to servers.
JSON Formatter
Beautify and format JSON with proper indentation.
JSON Validator
Validate JSON syntax and see detailed error messages.
JSON Minifier
Minify and compress JSON by removing whitespace.
JSON Compare
Compare two JSON objects and highlight the differences.
JSON to CSV
Convert a JSON array to CSV format for spreadsheets.
JSON to XML
Convert JSON to XML format online.
Frequently Asked Questions
Is my JSON data safe?
Yes. All processing happens directly in your browser using JavaScript. Your JSON is never sent to any server.
What is JSON formatting?
JSON formatting (beautifying) adds indentation and line breaks to make compact or messy JSON readable by humans.
How do I convert JSON to CSV?
Paste a JSON array into the JSON to CSV tool. Each object in the array becomes a row, and the keys become column headers.
What does the JSON diff tool do?
The JSON Compare tool recursively compares two JSON objects and shows every field that was added, removed, or changed between them.