Dummio privacy policy
Last updated: 1 November 2026

Dummio fills web forms with made-up test data. It is built so that nothing you do with it leaves your browser.

What Dummio collects
Nothing. Dummio has no accounts, no analytics, no tracking and no server. It makes no network requests.

What Dummio stores
Settings (data locale, overwrite, password length, long text style) are saved with your browser's sync storage. If you are signed in to your browser with sync turned on, your browser syncs them between your own devices. Dummio never sees or sends them anywhere else.
Site presets (values you choose for fields on a site) are saved on this device only.
You can delete presets on the settings page at any time. Removing Dummio deletes everything it stored.

What Dummio reads on a page
Dummio only touches a page when you click its button, press its shortcut or choose "Fill this field". It then reads the page's form fields (labels, names and formats) to decide what to fill, and writes made-up values into them. It does not read or keep anything else on the page, and nothing it reads is stored or sent.

Permissions
Permission Why
activeTab Fill the page you are on, only after you click, press or right-click
scripting Run the filler on that page when you ask
contextMenus Add "Fill this field" to the right-click menu
storage Save your settings and site presets
Links
The settings page links to GitHub (to report a problem) and Ko-fi (to support the project). These open in a new tab only when you click them.

Contact
Questions or concerns: open an issue at https://github.com/melvinbulan17/dummio/issues