Free developer and data tool
JSON Formatter
Format, validate, beautify, and minify JSON directly in your browser with a simple privacy-conscious online tool.
Format or validate JSON
Paste JSON below, then choose whether to format it, minify it, or validate it. The result appears in the output box.
What this JSON Formatter does
This JSON Formatter helps you clean up JSON data so it is easier to read, inspect, debug, and share. You can format messy JSON into an indented structure, minify formatted JSON into a compact version, or check whether the pasted text is valid JSON.
JSON is commonly used in APIs, configuration files, web applications, data pipelines, and software development workflows.
How to use this tool
- Paste JSON into the input box.
- Click Format JSON to beautify it with indentation.
- Click Minify JSON to remove unnecessary spacing.
- Click Validate JSON to check whether the input is valid.
- Use Copy output to copy the result.
Important privacy note
This MVP version is designed to process JSON locally in your browser. Do not paste passwords, API keys, private tokens, credentials, confidential business data, customer records, or sensitive personal information into any online tool unless you understand how that tool handles data.
FAQ
What is JSON?
JSON stands for JavaScript Object Notation. It is a lightweight text format used to store and exchange structured data.
What does formatting JSON mean?
Formatting JSON means adding indentation and line breaks so nested data is easier to read.
What does minifying JSON mean?
Minifying JSON removes extra spaces and line breaks so the JSON takes less space.
Why is my JSON invalid?
Common errors include missing quotation marks, trailing commas, unmatched brackets, or using single quotes instead of double quotes.
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