JSON Formatter & Validator
Format, minify, or validate JSON data. Runs entirely in your browser.
JSON is the standard data format for APIs, config files, and web applications. Paste messy or minified JSON here to format it with proper indentation, minify it for production, or validate it to catch syntax errors before they break your pipeline.
Result appears here…FAQ
What is JSON formatting?
JSON formatting (or "pretty-printing") adds consistent indentation and line breaks to JSON data, making it easier to read and debug. This tool uses 2-space indentation by default.
Is my data safe?
Yes. All processing happens in your browser — no data is sent to any server. Your JSON never leaves your machine.
What does "Validate" do?
Validate checks whether the input is syntactically correct JSON. It reports the first error found, including the position in the string.
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