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JSON Formatter & Validator

Pretty-print, minify and validate JSON with clear error positions. Free, instant and private โ€” no sign-up required.

About the JSON Formatter & Validator

Paste JSON from an API or log file to get a pretty-printed version with clear error positions.

Validate your JSON data to ensure it is correctly formatted and identify the exact line and column of any errors.

Sort keys alphabetically for easier readability and minify JSON for transport, all without uploading files.

How to use the JSON Formatter & Validator

  1. Step 1: Paste your JSON data into the input field.
  2. Step 2: Click on 'Format' to pretty-print your JSON with indentation and line numbers.
  3. Step 3: Click on 'Minify' to compress your JSON for transport.
  4. Step 4: Choose 'Sort keys' to alphabetize your JSON data.

Tips & benchmarks

  • Trailing commas and single quotes can be common reasons why JSON fails to parse. Make sure to check these.
  • Use our tool to validate your API responses safely, without uploading sensitive files to the cloud.
  • Our tool uses the browser's local storage, so all processing happens securely within your own device.

Frequently asked questions

Is my data uploaded to your server?

No, our JSON Formatter & Validator tool runs entirely in your browser. No files are uploaded or sent to our servers for processing.

What happens if my JSON is invalid?

Our tool will display the exact line and column of any errors found in your JSON data, making it easy to identify and fix issues.

Can I use this tool for production code?

Yes, our JSON Formatter & Validator is suitable for use with production code. It's fast, secure, and helps ensure accurate JSON formatting.

Does the 'Sort keys' feature sort alphabetically?

Yes, our 'Sort keys' feature sorts your JSON data alphabetically by key, making it easier to read and understand.

Can I copy or download the formatted JSON result?

Yes, you can easily copy or download the formatted JSON result directly from our tool.

Is the JSON minification process secure?

Yes, our JSON minification process is designed to be fast and secure. It ensures that sensitive data remains safe and protected within your browser.

All tools on 24SevenUpdates are free to use for personal and commercial work. Calculations and file conversions are performed in your browser; the redirect and cache checkers make a single request to the URL you enter and store nothing. Found a bug or want a new tool? Tell us.