JSON (JavaScript Object Notation) is a lightweight format for storing and exchanging data. It is easy for humans to read and simple for machines to parse, making it the most widely used format for APIs, configs and databases.

However, JSON files are often compressed into a single line, which makes them hard to read and debug. A JSON Beautifier reformats the code with proper indentation and spacing, while a Tree Viewer lets you explore data in a structured, expandable format.

Using the tool is quick and simple:

• Step 1: Paste or upload your JSON data, or provide a file URL.
• Step 2: Click the Process button.
• Step 3: View beautified JSON with proper formatting.
• Step 4: Explore nested data using the expandable Tree Viewer.
• Step 5: Copy, edit, download, or minify the JSON as needed.

The tool also highlights errors with line numbers, making debugging easy.

JSON supports six main data types:

• Number – 10, 3.14
• String – "Hello World"
• Boolean – true, false
• Array – [1, "apple", false]
• Object – {"name":"John", "age":30}
• null – {"value": null}

Beautification makes these structures easy to read and helps you catch missing commas, brackets, or braces instantly.

• Beautify JSON with clean indentation and spacing.
• View data in an interactive Tree Viewer.
• Validate JSON and detect syntax errors.
• Minify JSON to reduce file size for production use.
• Edit and reformat JSON directly in the tool.
• 100% free, browser-based and mobile-friendly.

A JSON Beautifier saves time and reduces errors by:

• Making raw JSON easy to read and understand.
• Helping developers debug missing brackets or commas.
• Allowing professionals to explain data structures to clients or teammates.
• Providing both pretty print and minified versions of the same file.
• Ensuring JSON is valid before sending to APIs or servers.

Yes. The JSON Beautifier & Tree Viewer runs directly in your browser. Your data is never uploaded or stored on any server — keeping your files 100% private and secure.