Browser-local tool
JSON Formatter
Paste JSON to validate and format it locally in your browser. Invalid input returns a readable error without uploading your data.
Formatted JSON
Output will appear here.This first-phase tool runs in your browser. Avoid pasting secrets into any online tool unless you understand its behavior.
JSON Minifier
Compress valid JSON into a compact single-line string.
JSON Escape
Escape or unescape JSON string content for logs, payloads, and configs.
JSON to TypeScript
Generate TypeScript interfaces from a JSON object.
FAQ
Does the JSON formatter upload my data?
No. The formatter runs in your browser for this first-phase tool.
Can it validate JSON?
Yes. Invalid JSON shows a readable parse error instead of producing output.