INPUT - JSON
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100% client-side
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Pretty print and beautify JSON online with our free JSON beautifier. Transform minified or compact JSON into a readable, well-indented format with your choice of 2-space, 4-space, or tab indentation. The tool validates syntax before formatting, preserves all data fidelity, and handles large JSON documents entirely in your browser.
Try Convert All - paste JSON once, see TypeScript, Go, YAML, and 15 more formats instantly.
Enter compact, single-line, or poorly formatted JSON in the editor. The beautifier handles any valid JSON regardless of its current formatting.
Choose between 2 spaces, 4 spaces, or tab indentation. The JSON is reformatted instantly with consistent nesting and alignment.
Click Copy to grab the properly indented JSON, or download it as a file. The output is ready for documentation, debugging, or committing to version control.
They are functionally the same - both add indentation and line breaks to make JSON readable. "Beautifier" emphasizes making the output visually clean, while "formatter" is a more general term. Our tool does both.
Yes. Most APIs return minified JSON to save bandwidth. Paste the compact response into the beautifier to see it with proper indentation. You can also use the URL-fetch feature to load JSON directly from an API endpoint.
No. Beautifying only adds whitespace for readability. All keys, values, ordering, and nesting are preserved exactly. The beautified JSON is semantically identical to the minified version.
Two-space indentation is the most common for JSON files in JavaScript and TypeScript projects. Four spaces are standard in Python ecosystems. Tabs are used in some Go projects. Choose whatever matches your project conventions.