MH Tools currently has no user accounts, no payment flow, and no database-backed profile system. Most tool inputs are handled directly in your browser for quick local use.

Image tools such as compression, resizing, conversion, cropping, palette extraction, and Base64 conversion are designed to process selected files locally in the browser. MH Tools does not upload those files to a server.

Favorites, recent tools, color history, countdowns, formula drafts, and similar small conveniences may use localStorage. That data stays in this browser unless you clear it or your browser removes it.

Analytics may be enabled with Google Analytics through a public environment variable. When analytics is not configured, the analytics component does nothing. Hosting platforms may still provide basic server logs.

Contact links may open your email app. If you send feedback, only include information you are comfortable sharing.