JSON Formatter & Viewer

Format, beautify, minify, and validate JSON. Explore your data with the interactive tree viewer. All processing happens locally in your browser.

1 objects
0 arrays
0 keys
0 strings
Depth: 0
Input JSON
Paste or type your JSON here
Output
Formatted or tree view

Format & Beautify

Add proper indentation and make JSON readable

Tree Viewer

Interactive tree view with search & expand

Minify

Remove whitespace to reduce file size

Validate

Check JSON syntax with detailed errors

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Frequently Asked Questions

JSON formatting (also called JSON beautification) adds proper indentation and line breaks to make JSON data human-readable. This is essential for debugging API responses, editing configuration files, and understanding data structures. Our tool formats JSON instantly in your browser.

JSON minification removes all unnecessary whitespace, including spaces, tabs, and line breaks. This can reduce file size by 20-40% depending on the original formatting. Minified JSON is ideal for production APIs and storage optimization while remaining fully valid.

The JSON Viewer mode displays your JSON as an interactive tree structure. You can expand/collapse objects and arrays, see data types with color coding, copy individual values or paths, and search through your data. It's perfect for exploring large API responses.

Yes, completely safe. All JSON processing happens 100% locally in your browser. Your data is never sent to any server, logged, or stored anywhere. This makes our tool ideal for formatting API keys, tokens, and confidential configuration data.