Loading Editor...

Why Use Our JSON Formatter?

Instant JSON Formatting

Paste your JSON and get beautifully formatted output in one click. Our formatter adds proper indentation and makes your JSON human-readable.

Interactive JSON Viewer

Explore JSON with our tree view. Expand and collapse nodes, search for keys, and navigate complex nested structures with ease.

JSON Validation

Validate JSON syntax in real-time. Get clear error messages with line numbers to quickly identify and fix issues in your JSON data.

Auto-Fix JSON Errors

Our smart JSON fixer automatically corrects common errors like trailing commas, single quotes, and unquoted keys.

100% Privacy

All JSON processing happens in your browser. Your data never leaves your computer - no servers, no tracking, complete privacy.

Advanced Features

Beyond formatting: JSON diff comparison, statistics, graph visualization, geographic map view, and more powerful tools.

How to Format JSON Online

1

Paste Your JSON

Copy your raw JSON data and paste it into the editor above, or click the Paste button.

2

Click Format

Press the Format button to beautify your JSON with proper indentation and formatting.

3

Copy & Use

Your formatted JSON is ready. Copy it to clipboard or explore it in Tree View.

Frequently Asked Questions

What is a JSON formatter?

A JSON formatter is a tool that takes raw or minified JSON data and formats it with proper indentation and line breaks, making it easier to read and understand. Our JSON formatter adds 2-space indentation, organizes nested objects and arrays, and highlights syntax for better visibility.

What is a JSON viewer?

A JSON viewer is an interactive tool that displays JSON data in a visual, navigable format. Unlike a simple text display, our JSON viewer provides a tree structure where you can expand and collapse nodes, search for specific keys, and explore complex nested data easily.

Is this JSON formatter free?

Yes, jsonformatter.me is completely free to use with no limitations. There are no signup requirements, no ads, and no data limits. You can format, validate, and view as much JSON as you need without any cost.

Is my JSON data secure?

Absolutely. All JSON processing happens 100% in your browser - your data is never sent to any server. This means your sensitive JSON data stays on your computer, making it completely safe to use for confidential information.

Can this tool fix invalid JSON?

Yes! Our JSON formatter includes an intelligent auto-fix feature that can automatically correct common JSON errors such as trailing commas, single quotes instead of double quotes, unquoted keys, and missing commas. When errors are fixed, you'll see a notification showing what was corrected.

What features does the JSON viewer have?

Our JSON viewer includes: Tree View for hierarchical navigation, Graph View for visual representation, Diff View for comparing two JSON files, Stats View for analyzing JSON structure, Search for finding specific keys or values, and Chart View for visualizing numeric data.

More JSON Tools

About JSON Formatter

jsonformatter.me is a free, open-source online tool for formatting, viewing, and validating JSON data. Built for developers, it provides a fast and secure way to work with JSON without sending your data to any server.

Whether you're debugging API responses, working with configuration files, or analyzing data, our JSON formatter and viewer makes it easy to understand and work with JSON data.