Free Online JSON Formatter
Format, validate, minify, and beautify JSON online with instant error feedback. Private browser-based JSON formatting with no uploads.
JSON Tree View
Why Use Our JSON Formatter?
This JSON utility combines developer-focused formatting controls with strict privacy-first processing, so you can clean and inspect payloads without uploading sensitive data.
Private by Default
All parsing, formatting, and searching happen directly in your browser session.
Built for Developers
Use pretty-print, minify, key sorting, JSONPath querying, and string escaping in one workspace.
Multilingual Workflow
UI and guidance are available in English, Swedish, Spanish, French, and German.
Frequently Asked Questions
Is my JSON uploaded to your servers?
No. Your JSON is processed locally in your browser for privacy-first usage.
Why is my JSON invalid?
Common issues include trailing commas, missing quotes around keys, and mismatched brackets.
What is format vs minify?
Formatting improves readability with indentation while minifying removes whitespace for smaller payloads.