JSON Formatter
Beautify or minify JSON with recursive key sorting, auto-repair, and structural analysis.
100% Client-Side · No Upload
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What is JSON Formatter?
JSON Formatter is a powerful, client-side developer utility that beautifies nested JSON strings into cleanly indented, human-readable representations. It auto-detects structural indentation, corrects minor syntax mistakes (such as single quotes or missing double quotes), and provides a fully interactive tree viewer to collapse and search complex data structures. All calculations are executed directly in your browser, ensuring absolute privacy for sensitive data.
How to use JSON Formatter?
1
Paste your raw, compressed, or unformatted JSON text into the input editor.
2
Choose your preferred indentation settings (2 spaces, 4 spaces, or tabs) from the configuration bar.
3
Click "Format" or press Ctrl+Enter to instantly beautify, sort keys recursively, and validate the structure.
4
Use the tree explorer to expand/collapse nodes or download the clean JSON file using the download button.
Interactive Example
Formatting a raw minified objectJSON
Input / Sample Source
{"user":{"id":12,"name":"Saish Shinde","tags":["developer","creator"],"active":true}}Output / Result
{
"user": {
"id": 12,
"name": "Saish Shinde",
"tags": [
"developer",
"creator"
],
"active": true
}
}Benefits & Features
✓
Enhanced ReadabilityTransforms dense, single-line text into a clear visual hierarchy.
✓
100% Privacy-FirstAll calculations run inside your browser. No data ever traverses a server network.
✓
Key SortingOptionally sorts object keys alphabetically to make diffing and searching consistent.
✓
One-Click DownloadSave the beautified format directly to a local .json file instantly.