What is JSON minification?

Minification removes insignificant whitespace and formatting from JSON while keeping the same data structure and values.

Why should JSON be minified?

Smaller payloads transfer faster and waste less storage in mocks, caches, and bandwidth-sensitive clients.

Minify whitespace, avoid redundant fields, and compress on the wire (gzip/br). Start by minifying here to measure whitespace cost.

No. Parsed values stay the same. Only formatting characters are removed.

Yes. This free minifier works in your browser with no install.

A free online tool that compresses JSON formatting for developers and students.

It validates with JSON.parse, then serialises with JSON.stringify without indentation, reporting bytes saved.

Paste JSON, review the size stats, and copy the minified output.

Yes. It is free with no sign-up.

Yes. Mobile browsers are supported.

Free JSON Minifier Online, Compress JSON Size | Binary Tech