JSON Formatter
Tired of dealing with minified or messy JSON data? Our free online JSON formatter instantly transforms tangled strings into clean, readable code with customizable indentation and clear structure.
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Output
Indentation:
Tired of dealing with minified or messy JSON data? Our free online JSON formatter instantly transforms tangled strings into clean, readable code with customizable indentation and clear structure.
Best Practice
Always use double quotes for keys and string values; single quotes are invalid in the JSON standard.
Tip
Use the JSON Minifier before deploying to production to reduce data transfer costs and improve performance.
JSON (JavaScript Object Notation) is a lightweight, text-based data-interchange format. Although it originated from JavaScript, it is language-independent and is the most common format used for data transfer between a server and a web application. Formatting is crucial because JSON is often delivered in a 'minified' state to save bandwidth, which makes it nearly impossible for humans to read without a beautifier tool.
Did You Know?
JSON was originally specified by Douglas Crockford in the early 2000s and is now standardized as RFC 8259.
jq utility is an excellent tool for formatting and querying JSON directly from the terminal..editorconfig or .prettierrc file in your repository to enforce consistent JSON formatting across your entire team.Q: Is my JSON data secure when using this tool? A: Yes. Our formatter works entirely on the client side, meaning your data stays in your browser and is never uploaded to any server.
Q: Why does my JSON fail to format? A: Formatting requires valid JSON syntax. Check for common issues like single quotes (instead of double quotes), trailing commas, or missing brackets.
Q: Can I convert JSON to other formats? A: This specific tool is for formatting and beautifying JSON. For conversion, check our other developer tools or use a dedicated converter.
Q: Does it support JSON with comments? A: Standard JSON does not support comments. However, this formatter will highlight errors if it encounters non-standard JSON comments.
Tip
You can use `JSON.stringify(obj, null, 2)` in JavaScript to quickly print formatted JSON to the console.