Does it change the data?

No, only whitespace is removed; the values stay identical.

Yes, invalid JSON is reported instead of minified.

JSON Minifier

Compress JSON by removing whitespace.

{"name":"Toolzy","tags":["a","b"],"active":true}

23% smaller

Strip all unnecessary whitespace from JSON to produce the smallest valid output.

Does it change the data?: No, only whitespace is removed; the values stay identical.
Is it validated?: Yes, invalid JSON is reported instead of minified.