JSON Formatter
Format, validate, and minify JSON data. Copy formatted output with proper indentation.
About JSON Formatter
The JSON formatter parses raw JSON and re-prints it with clean indentation, sorting and validation options, so the structure is instantly readable.
JSON is the universal data format for APIs and configuration files, but raw minified JSON is unreadable. This tool validates the syntax, highlights errors, and reformats nested objects into a clear tree — saving developers time when debugging API responses or hand-editing config files.
When to Use JSON Formatter
Use it to format an API response for inspection, to find a missing comma or bracket in a file, or to minify a pretty-printed JSON for storage.
Pro Tip
If it won't parse, check for trailing commas — they're allowed by browsers but rejected by strict JSON parsers.
Key Features
Processes JSON directly in your browser
Produces formatted json instantly
Completely free with no usage limits
No registration or account required
How to Use
Provide the required input (JSON).
The tool processes everything locally in your browser and instantly produces formatted json.
Review the result, then copy it to your clipboard or download the output file directly from this page.
Privacy note: JSON Formatter runs 100% in your browser. Your data is never uploaded to any server, so nothing is stored or shared.
Benefits
Your data never leaves your device when using JSON Formatter - everything runs locally
Get accurate results in seconds
Works on desktop, tablet, and mobile
No software download or installation needed
Frequently Asked Questions
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