JSON Minifier
Developer utilities · Done in 3 steps
- 1Paste your JSON
- 2
- 3
About
Minify JSON by stripping whitespace and line breaks, and see exactly how many bytes and what percentage you saved.
How to use it
- 1Paste or open formatted JSON.
- 2The minified version appears instantly on the right.
- 3Check the size saved.
- 4Copy or download the minified JSON.
- You give
- JSON text or a .json file
- You get
- Single-line minified JSON and before/after sizes
- Good to know
- Minifying only removes insignificant whitespace; it doesn't shorten keys or values. Invalid JSON must be fixed first (errors are shown with line and column).
- Privacy
- Processed on your device. Nothing is uploaded, stored or logged.
- Last tested
- 2026-10-28
FAQ
Does minifying change my data?
No. Only whitespace outside strings is removed; keys, values and their order stay exactly the same.
Is minified JSON faster?
It is smaller to send and store. With gzip or brotli compression on the server the difference shrinks, but minified JSON is still slightly smaller.
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