Privacy Policy

The short version: Zase tools run entirely in your browser. Nothing you type, paste, or generate is collected, transmitted, or shared. This page explains exactly what that means for this website and for the Chrome extension.

What we do not do

• No analytics
• No tracking, and no advertising
• No accounts and no sign up
• No cookies set by this site
• No servers receiving your tool input
• No remote code: every script is served with the page

What stays on your device

Your theme choice, and preferences saved by some tools (for example, colors you picked in the color tools), are stored in your browser's local storage, on your device only. They never leave the device, and you can delete them at any time by clearing the site's data in your browser settings.

Sensitive tools, such as the JWT Decoder, the JWT Signer, the Hash Generator, the Password Generator, and AES Encrypt / Decrypt, do not save their input at all. Anything you paste into them is gone when you close the tab.

The Chrome extension

The Developer Toolkit by Zase extension follows the same rule: it collects nothing. It requests only four permissions, each for a visible feature:

• storage: saves your preferences locally, such as theme, favorites, and recents.
• system.display: opens the extension window centered on your active screen.
• contextMenus: adds right-click entries to open the toolkit or send selected text to a tool, locally.
• sidePanel: lets the toolkit open docked in Chrome's Side Panel when you ask for it.

Contact

Questions or issues: open an issue on GitHub.

Last updated: 2026-10-30