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Code & Data Tool
JSON Minifier
Compress JSON, compare size savings, and export compact data.
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About this tool
What is JSON Minifier?
JSON Minifier removes all unnecessary whitespace from JSON to make it as compact as possible. It also shows how many characters you saved, which helps when you are trimming payloads for APIs, config files or storage.
Useful when you need to
- Shrink a JSON payload before sending it
- Compare size before and after minifying
- Prepare a compact sample for a request body
How to use
How to use JSON Minifier
01 02 Minify
Run the tool to strip spaces and line breaks.
03 Check the savings
Compare the original and minified sizes shown.
04 Copy the result
Copy or export the compact JSON.
Tips
Get better results
- Minified JSON is hard to read. Keep a formatted copy for editing.
- Invalid JSON cannot be minified, so fix errors first with the JSON Validator.
FAQ
Frequently asked questions
Does minifying change my data?
No. Values and structure stay the same; only whitespace is removed.
How much will it save?
It depends on how much indentation your JSON had. Heavily indented files save the most.
Is it private?
Yes, it runs locally in your browser.
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