JSON Formatter
Free online JSON formatter and validator. Beautify, minify and validate JSON with syntax highlighting and error location — no data leaves your browser.
FAQ
Does it show where JSON errors are?
Yes — invalid JSON reports the exact line and column of the syntax error.
Can I minify JSON too?
Yes, one click switches between beautify (indented) and minify (compact) modes.
Is my JSON uploaded?
Never. Parsing and formatting run entirely in your browser — safe for API keys and sensitive payloads.