JSON Formatter
Format, beautify and validate JSON instantly in your browser. Free online JSON formatter with 2/4-space and tab indentation, no signup, 100% client-side.
JSON Minifier
Paste formatted JSON below to strip all unnecessary whitespace. The tool validates your JSON while minifying and shows how many bytes you saved.
Private by default: processing stays on your device
Example: formatted JSON → minified
Input
{
"name": "Ada",
"active": true
} Output
{"name":"Ada","active":true} These buttons share the page link, not your input.
Want to include your text?
Your current input will be stored in the link after the # symbol, not uploaded to HandyBrowserTools. Anyone with this link can read that text. If you send or post it, the service you choose also receives the link. Do not include passwords or private information.
Frequently asked questions
Why minify JSON?
Minified JSON is smaller to store and faster to transfer, which is useful for API payloads, config files and embedded data. It's functionally identical to formatted JSON.
Is my data uploaded anywhere?
No. The minifier runs entirely in your browser; nothing is sent to a server.
Will minifying change my data?
No. Only insignificant whitespace between tokens is removed. Strings, numbers and structure are untouched.
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