JSON Minify

Compress JSON locally with before/after size stats.

Input JSON

Format, validate, query, compare, and convert JSON, YAML, TOML, XML, CSV, and typed models.

How to use & FAQ

Ship compact JSON in production while editing pretty-printed configs in dev. Tools Ku minifies in-browser and shows savings.

Pair with JSON Formatter and JSON Diff in your workflow.

Uploaded?▾

No.

Changes data?▾

No—whitespace only.

Invalid JSON?▾

Fix syntax first—use Formatter.

Large files?▾

Few MB typical in-browser.

Same as Formatter?▾

This page is minify-only.

Signup?▾

No.