JSON Minifier
Minify JSON by removing every unnecessary space and line break. See how much smaller it gets.
Free · No upload · 100% on your device
How to use JSON Minifier
- Type or paste your code or data, or open a file.
- The result updates as you type.
- Copy the result or download it as a file.
Private by design. Everything you type, open or record is processed in this browser tab and is never uploaded to KittySuite.
About JSON Minifier
Minifying keeps every key and value exactly as it was; only whitespace between tokens is removed. Text inside strings is never touched.
Everything runs in this browser tab: your text is never uploaded or stored, and the result updates as you type. It keeps working offline once the page has loaded.
JSON Minifier: frequently asked questions
How do I minify JSON?
Paste the JSON and the minified version appears with how much smaller it became.
Does minifying change my data?
No. Every key and value stays exactly the same; only whitespace between tokens is removed. Text inside strings is never touched.
Can I turn minified JSON back into readable JSON?
Yes. Paste it into JSON Formatter.
What if the JSON is invalid?
It is not minified; the error is shown so you can fix it first.