Online JSON Formatter & Validator | Beautify & Check JSON
Free online JSON formatter, validator, and beautifier. Easily prettify JSON, validate its structure, and format data securely in your browser.
JSON Formatter & Validator
Format, prettify, and validate your JSON data in real-time.
Free Online JSON Formatter, Validator & Beautifier
Why Use Our JSON Formatter & Validator?
Clean up, format, and validate json data with our powerful all-in-one tool. Our JSON formatter is also a powerful JSON beautifier that instantly transforms messy, minified code into a clean, readable format. At the same time, our JSON validator checks your code for syntax errors, helping you debug with ease.
Maximum Privacy with Client-Side Processing
Your privacy is our top priority. This tool operates entirely within your web browser. This means your sensitive JSON data, API keys, or configurations are never uploaded to our servers. All formatting and validation happens directly on your own device, ensuring your data remains 100% confidential.
Instant JSON Formatter, Prettifier & Beautifier
Turn unreadable, single-line JSON into a beautifully indented structure. Our json formatter online acts as a JSON prettier and beautifier, adding spacing and line breaks to make the json format easy to read and understand. Use it to beautify json or prettify json with one click.
Real-Time JSON Validator
Stop hunting for missing commas or brackets. As you type or paste your code, our json validator online continuously checks for syntax errors. Get immediate feedback with a clear "Valid JSON" status, or get helpful error messages to quickly validate json and fix any issues.
User-Friendly Interface
Our side-by-side editor provides a clear view of your original and formatted code. With features like "Copy Output" and "Load Sample," managing your JSON data is simple and efficient for any json online formatter task.
How to Format and Validate JSON
Paste Your Code
Copy your JSON data and paste it into the "Input JSON" panel on the left.
Format Instantly
The tool will automatically format and beautify json in the "Formatted Output" panel on the right.
Check Validity
Look at the status indicator at the bottom to instantly see if your JSON is valid. The tool will also highlight any syntax errors it finds.
Copy Your Code
Click the "Copy Output" button to copy the clean, formatted JSON to your clipboard.
About the JSON Formatter & Validator Tool
This online json formatter and validator is an essential utility for developers. JSON is a standard format for data exchange, but it's often transmitted in a minified state. A json formatter and validator solves this by making the code readable and ensuring it is syntactically correct, saving valuable debugging time. It's the best json formatter or validator for quick and secure use.