Syntax HighlightingTree ViewValidation

How It Works

1

Paste JSON

Paste your JSON data into the editor.

2

Format or Validate

Click Beautify to format, Minify to compress, or check validation status.

3

Copy Result

Copy the formatted JSON or explore it in tree view.

Frequently Asked Questions

What is JSON formatting?
JSON formatting (also called beautifying or pretty-printing) adds consistent indentation and line breaks to a JSON string, making it easier to read and debug. Minifying does the opposite, removing all unnecessary whitespace.
What does the tree view show?
The tree view presents your JSON data as a collapsible hierarchy. Objects and arrays can be expanded or collapsed to navigate large data structures easily.
How does validation work?
The tool uses the built-in JSON.parse() function to validate your JSON. If the JSON is invalid, it will show an error message with the approximate line and column where the problem occurs.
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About JSON Formatter

What this tool does

Developer and design tools include CSS generators (gradients, shadows, glassmorphism), code playgrounds, color pickers, responsive previews, and reference charts for HTML tags, HTTP methods, and keyboard shortcuts.

Why use this tool

Front-end development involves constant context switching between code and visual output. Having generators and references in a single browser tab speeds up prototyping and reduces the need to search through documentation sites.

How it works

Each tool provides an interactive UI: you tweak parameters (colors, radii, durations), and the tool generates the corresponding CSS, HTML, or SVG code in real time. Copy the snippet directly into your project.

Pro tip

Use the CSS variable output option when available. It makes your generated code theme-friendly and easier to maintain across a design system.

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Part of these workflows

Developer Data Processing

3 steps

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