JSON Formatter
Paste any JSON below. format it, validate syntax errors, or minify for production. Everything runs in your browser.
JSON Beautifier Online
Opinionated layout pass: this route is only about turning a tight blob into something your team can review in a PR. If you are chasing parse errors, use the validator page. If you are shrinking payloads, use the minifier. Here the goal is consistent indentation and predictable wrapping so diffs stay readable.
How to Use
- Paste your JSON into the Input panel on the left
- Select your preferred indentation: 2-space, 4-space, or Tab
- Click Format to beautify the JSON
- Copy the beautified output or download it as a .json file
Features
- Beautify JSON with 2-space, 4-space, or tab indentation
- Instant output with no page reload required
- Syntax error detection with exact line and column numbers
- Download beautified JSON directly as a .json file
- Copy output to clipboard with a single click
- Works entirely in the browser. 100% private, no uploads
- Live character and line count in the editor
Frequently Asked Questions
What is JSON beautification?
JSON beautification is the process of reformatting a compact or minified JSON string by adding indentation, line breaks, and spacing so it becomes easy for humans to read and understand. The data itself is not changed, only the whitespace and layout.
What indentation should I use?
2-space indentation is the most common choice and is recommended by many style guides. 4-space indentation is preferred in some codebases for extra visual clarity. Tabs are best when your team or project already uses tab-based formatting. All three produce equally valid JSON.
Does beautifying change JSON data?
No. Beautifying only adds whitespace (spaces, tabs, and newlines) to improve readability. The keys, values, arrays, and objects remain completely unchanged. A beautified JSON document is semantically identical to its minified original.
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