Quick Summary
Private JSON Formatter is a serverless client-side utility designed to format, inspect, and beautify sensitive JSON payloads without transmitting data across external network calls.
What it does
100% in-browser isolation
Formatting logic runs entirely in your local browser JavaScript thread. Zero network calls occur during operations.
GDPR & SOC2 Safe
Inspect confidential API secrets, customer PII, and production bearer tokens safely without data compliance risks.
Offline PWA ready
Functions completely offline once cached, guaranteeing continuous privacy even without an active internet connection.
Frequently asked questions
How do I format JSON without sending data to a backend server?
OnlineViewer Dev processes JSON entirely using Web API standard JavaScript engines directly inside your web browser. You can inspect DevTools Network tab to verify zero HTTP payload uploads occur.
Can I use this JSON viewer offline?
Yes! OnlineViewer Dev includes a Service Worker PWA manifest that caches assets locally, allowing full JSON viewing and formatting even when disconnected from the internet.
Technical Privacy Guide
Read Guide
Read how to format sensitive JSON payloads safely and verify zero server requests using Chrome DevTools.