JSON Formatter

How to Format, Validate & Minify JSON Payloads Privately

Developers frequently debug REST API responses, Firebase configurations, and JWT claims containing sensitive production keys or customer PII. Pasting confidential JSON into server-backed beautifiers exposes those secrets—whereas Factictionary parses and formats JSON 100% locally via V8 `JSON.parse()` in your browser.

Step-by-Step Instructions

1. Paste your raw or minified JSON string into the input editor above.
2. Click "Format" to pretty-print with 2-space indentation, "Minify" to strip whitespace for production payloads, or "Validate" to pinpoint syntax errors by line and character offset.
3. Copy the cleaned output to your clipboard or download it as a `.json` file.