Your data never leaves your browser

What happens to the text, JSON, files, or passwords you enter

Every tool on Kernos — from the JSON Formatter to the Password Generator — runs entirely as JavaScript in your browser tab. What you type, paste, or upload into a tool is processed on your device and is never transmitted to a Kernos server, logged, or stored anywhere we control. There is no backend endpoint that a tool page calls to do its work; the code that formats, converts, or generates output is the same code already sitting in the page you loaded.

This isn't a policy we're promising to follow — it's a consequence of how the tools are built. You can verify it yourself: open your browser's network inspector while using any tool and confirm no request fires when you type, paste, or click Format/Generate/Convert.

Accounts and storage

Kernos has no accounts, no sign-in, and no server-side database. Anything a tool remembers between visits (like a recently-used tool list or your light/dark theme choice) is stored only in your own browser's local storage, never sent to us.

Analytics

We use Vercel Analytics to understand which tools are used and whether pages load quickly. It records page views and performance metrics — never the content you type or paste into a tool. Analytics data is never linked to what you did inside a tool.

Cookies

Kernos does not use tracking or advertising cookies. Your theme preference is stored locally in your browser, not in a cookie read by a server.

Questions

If anything here is unclear, the source code for every tool is the actual specification of what it does with your input — there is no separate hidden behavior to disclose.