Privacy
The short version
JSONForge is a set of static files. There is no server that receives your JSON, because there is no server-side code at all. Parsing, formatting, diffing, repair and schema inference all run inside a Web Worker in your own browser tab.
What we could technically send (and do not)
Nothing. The document you paste or drop is held in memory in the tab and, if you use history, in IndexedDB on your device. It is never written to window, to data-* attributes, to the page title, or to a URL query string. Share links put the payload in the URL fragment (#s=…), which browsers do not transmit to any server.
What is stored on your device
Two localStorage keys (theme and language preference) and, optionally, an IndexedDB database holding up to 50 recent history entries. Clearing site data removes all of it. We cannot read any of it, because it never leaves your device.
Third-party scripts on this site
This page loads anonymous analytics (Cloudflare Web Analytics, which is cookie-free) and advertising scripts. That is why we say "your JSON never leaves this browser" rather than "zero third-party requests" — the second claim would be false. What is true is that those scripts cannot see your document: it is never exposed to the DOM or the network.
Service worker
The service worker caches the app shell so the site works offline. It explicitly never caches or proxies requests to analytics or advertising origins.
No accounts, no tracking cookies
There is no sign-up, no login, no email collection and no cross-site tracking cookie. We have no way to identify you.
Children and sensitive data
Because nothing is transmitted, pasting confidential data is materially safer than with any server-based tool. That said, browser extensions on your own machine can still read the page — use a clean profile for genuinely sensitive material.
Changes
If this policy changes, the new version will appear on this page with an updated date. The architectural claim (no backend) cannot quietly change: removing it would require shipping a server.
Questions about any of this? hi@jsonforge.dev — or read About.