Secure JSON Repair – Offline JSON formatting and repair tool

Summary: Secure JSON Repair is a browser-based tool that formats and repairs JSON data entirely offline, eliminating server calls. It automatically fixes common JSON errors like trailing commas and unquoted keys while providing syntax highlighting and a collapsible tree view.

What it does

It repairs invalid JSON by correcting syntax issues and displays data in a collapsible tree with copyable node paths. The tool supports sorting keys alphabetically and offers light and dark themes.

Who it's for

Developers and users who need to format or fix JSON securely without uploading data to external servers.

Why it matters

It prevents exposing sensitive JSON data by running fully offline, ensuring privacy and security during formatting and repair.