JSON Minifier
Remove every byte of whitespace that JSON doesn't need. Perfect before embedding JSON in code, configs or API payloads.
Frequently asked questions
How much smaller will my JSON get?
It depends on how it was formatted: pretty-printed JSON often shrinks 30-60%. This tool shows the exact before/after character counts and the percentage saved.
Is minified JSON still valid?
Yes. Minification removes only whitespace between tokens, which the JSON spec allows to be absent. The output parses to exactly the same value as the input.
When should I minify JSON?
Common cases: embedding JSON into JavaScript source, shrinking config files, reducing payload size before storage, or normalizing files before diffing.