Online JSON Minifier

Compress JSON by stripping whitespace — perfect for API payloads and bandwidth-sensitive apps.

Minify any JSON document to reduce its size. Common savings are 20–60%.



Frequently asked questions

Why minify JSON?
Minified JSON removes all whitespace and line breaks, dramatically reducing file size for faster network transfer and lower bandwidth costs.
How much smaller is minified JSON?
Typically 20–60% smaller depending on how much indentation the original used. The savings compound when serving JSON to many users.
Will minifying break my JSON?
No. Whitespace outside of string values is not significant in JSON, so minification is fully reversible by formatting again.
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