JSON Minifier
Strip all whitespace from JSON to make it as compact as possible. Runs in your browser.
Input JSON
Output
FORMAT
Tips
Paste JSON in the left pane. Output updates instantly.
Runs entirely in your browser
How it works
Minifying calls JSON.parse on your input to confirm it is valid, then JSON.stringify(value) (with no indent argument) re-emits the same data with all incidental whitespace removed. The result is the smallest possible representation of your JSON, ideal for API payloads, localStorage entries, and embedded config strings inside source code.
Processing runs in your browser
All processing happens inside your browser tab. Our servers are not involved at any point.
Related operations
For converting between data formats, try CSV to JSON or the YAML formatter. To decode tokens, use the JWT decoder. For escaping URL data, try URL encode.
Frequently asked questions
- Why minify JSON?
- Minified JSON is smaller, which reduces payload size in APIs, config files, and localStorage.
- Does minifying change the data?
- No, only whitespace is removed. The values, keys, and structure are unchanged.
- Is the result valid JSON?
- Yes. Minified JSON is valid and parseable by any JSON parser.
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