Format, validate and minify JSON. Runs entirely in your browser — nothing is uploaded.
No. This tool runs entirely in your browser using JavaScript's built-in JSON parser. Your data never leaves your device, so there's no file size limit and no daily usage limit.
It tells you exactly where the JSON is invalid — Chrome/Firefox/Safari's JSON parser reports the position of the syntax error — but it won't guess your intent and rewrite it for you.