JSON Formatter – Blueprint

Validate and format JSON instantly: prettify, minify, sort keys, and copy. No permissions required.

JSON Formatter – Blueprint is a fast, minimalist popup tool for working with JSON. Open the extension and instantly validate, prettify, minify, sort keys, and copy results—no distractions, no extra steps. Built for developers, analysts, and QA who need clean, readable JSON in seconds, it runs in a compact UI and requires no permissions, keeping your browsing environment tidy. How it works: click the icon, paste or type JSON, choose an action (Prettify, Minify, Sort Keys), then copy the output.