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JSON Formatter

Format, validate, and prettify JSON data with syntax highlighting and error detection.

🔌Format JSON via MCP in VS Code, Claude & AI Assistants

Options:

Input JSON

Paste your JSON here or upload a file

Output JSON

Processed JSON will appear here

What is a JSON Formatter?

A JSON Formatter is a tool that helps to beautify and validate JSON data. JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write and easy for machines to parse and generate. Our JSON Formatter takes raw JSON data and transforms it into a well-structured, readable format.

How to use our JSON Formatter

  1. Paste your JSON data into the input field on the left.
  2. Click the "Format / Beautify" button to format the JSON.
  3. The formatted JSON will appear in the output field on the right, with a tree view available.
  4. You can also click "Minify / Compact" to compress the JSON data.
  5. Use the "Sort Keys Alphabetically" option for organized output.
  6. Upload a JSON file directly or load a sample to see the tool in action.

Features of our JSON Formatter

  • JSON Formatting & Minifying: Beautify messy JSON to make it readable, or minify it to save space.
  • Syntax Validation: Checks your JSON for syntax errors and displays a clear error message if invalid.
  • Tree View: Explore your formatted JSON in a collapsible tree structure for easy navigation.
  • Sort Keys: Alphabetize your JSON keys for a more organized structure.
  • File Upload & Download: Work with local JSON files seamlessly.
  • Client-Side Processing: Your data is safe and secure, as all processing happens in your browser.

Frequently Asked Questions (FAQ)

Is this JSON Formatter free to use?

Yes, our JSON Formatter is completely free to use with no limitations.

Is my data safe?

Absolutely. All JSON processing is done on the client-side in your browser. No data is ever sent to our servers.

What is the maximum JSON size this tool can handle?

Our tool is designed to handle large JSON files, but performance may vary depending on your browser and device capabilities.

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