JSON Formatter & Validator
Paste JSON to format (prettify), minify, or validate. Invalid JSON will show an error message. No data is sent to any server.
About this tool
The JSON Formatter & Validator lets you paste raw JSON and instantly format it (prettify with indentation), minify it (remove extra spaces), or validate it. Invalid JSON is highlighted with an error message so you can fix syntax quickly.
All processing runs in your browser. No data is sent to any server, which is useful when working with sensitive or confidential JSON.
Frequently asked questions
What is JSON?
JSON (JavaScript Object Notation) is a text format for storing and exchanging data. It is widely used in APIs, config files, and web apps.
Why would I minify JSON?
Minified JSON has no extra spaces or line breaks, so file size is smaller. It is often used in production APIs and front-end bundles.
Is my JSON data sent to your servers?
No. Formatting and validation run entirely in your browser. Nothing is uploaded or stored.
Do I need to create an account?
No. All Tagna Tools work without login.
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