{ } JSON · Format & validate · Instant

Format and validate JSON

Instantly format, validate, minify, and beautify your JSON data. Catch syntax errors and improve readability.

Syntax highlighting

Error detection

Minify & beautify

Free forever

Powerful Features

🎨

Syntax Highlighting

Beautiful color-coded syntax highlighting makes your JSON easier to read and understand at a glance.

✓

Real-time Validation

Instantly validate your JSON and get detailed error messages with line numbers to fix issues quickly.

🗜️

Minify & Beautify

Compress your JSON for transmission or expand it for easy reading. Choose between 2 or 4 space indentation.

🌳

Tree View

Explore your JSON structure with an interactive tree view. Collapse and expand nodes to navigate complex data.

📋

One-Click Copy

Copy your formatted JSON to the clipboard instantly. Perfect for pasting into your code or configuration files.

🔒

100% Private

All processing happens in your browser. Your JSON is never sent to any server. Complete privacy guaranteed.

How It Works

Paste Your JSON

Copy and paste your raw JSON data into the input field on the left. You can paste any valid or invalid JSON.

Choose an Action

Click Format, Minify, or Validate to process your JSON. Real-time status updates show you the result instantly.

Review the Output

See beautifully formatted JSON with syntax highlighting. Error messages clearly show what needs to be fixed.

Copy & Use

Click Copy to copy the output to your clipboard, then paste it into your code, config files, or anywhere else.

Frequently Asked Questions

Is my JSON data private? ▼

Yes! All processing happens entirely in your browser. Your JSON data is never sent to any server. We don't store, log, or track any of your data.

Can I use large JSON files? ▼

Yes, the tool can handle very large JSON files. Browser performance may depend on your device's capabilities, but most files process instantly.

What's the difference between Format and Minify? ▼

Format prettifies your JSON with indentation and line breaks for readability. Minify removes all unnecessary whitespace to reduce file size for transmission.

Do I need to install anything? ▼

No installation needed! This is a completely online tool. Just open it in any modern browser and start formatting your JSON instantly.

What does Tree View show? ▼

Tree View displays your JSON as a collapsible/expandable hierarchical structure. Great for understanding complex nested objects and arrays.