JSON Minifier validates JSON then removes whitespace with JSON.stringify. Compare original vs minified size and download the compact result.
JSON Minify
Minify JSON Free
Compress JSON into a single line and see how many characters you saved - fully local.
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What is this?
How it works
1. Paste JSON.
2. Click Minify JSON.
3. Review original size, minified size, and savings.
4. Copy or download the compact .json.
Features
- One-line minified output
- Size and savings stats
- Clear invalid-JSON errors
- Copy and download .json
Benefits
Shrink payloads and config files for production and storage.
Trust & privacy
Your JSON is processed only in your browser. Studix does not upload or store it for this tool.
Frequently asked questions
No. Minifying runs entirely in your browser.
You get a clear error with line and column. Fix it before minifying.