Privacy Policy — MonkeyScript

Effective date: August 10, 2026  •  Applies to: MonkeyScript browser extension (Chrome Web Store)

What MonkeyScript is

MonkeyScript is a userscript manager. It lets you write, store, and run your own JavaScript on websites you choose. Its single purpose is managing and executing scripts that you author or explicitly import.

Data we collect

None. MonkeyScript:

• Does not collect personally identifiable information (name, address, email, age, or identification numbers)
• Does not collect health, financial, or payment information
• Does not collect authentication information (passwords, credentials, PINs)
• Does not collect personal communications (emails, texts, chat messages)
• Does not collect location data (IP address, GPS, or region)
• Does not collect web history or track the pages you visit
• Does not monitor user activity (clicks, keystrokes, mouse position, or scrolling)
• Does not read or collect website content (text, images, sounds, videos, or hyperlinks)
• Contains no analytics, telemetry, crash reporting, or advertising of any kind

Network requests

The extension makes zero network requests. It has no servers, no accounts, no sync service, and no update-checking for scripts. The only exception is action you explicitly take: if one of your own scripts calls GM.openInTab(url), the browser opens that URL in a new tab, exactly as if you had clicked a link.

What is stored, and where

The following is stored only on your device, in your browser's local extension storage (chrome.storage.local):

1. Your userscripts — the code and metadata you write or import
2. Script settings — each script's enabled/disabled state
3. Script values — data your own scripts choose to save via the GM.getValue / GM.setValue API, namespaced per script

This data never leaves your browser. It is removed when you uninstall the extension. You can export it at any time using the Dashboard's Export feature, and delete any script (and its stored values) using the Delete button.

Permissions explained

• User Scripts (userScripts) — the Chrome API used to run the scripts you write. This is the extension's core function.
• Storage (storage) — used to save your scripts and their settings locally, as described above.
• Access to websites (<all_urls>) — required so you can target any website with your scripts' @match patterns. MonkeyScript itself does not read, modify, or collect anything from any website; only the scripts you write and enable run on pages, and only on the sites you specify.

Your scripts are your responsibility

Userscripts you write or import run with access to the websites they match. MonkeyScript executes them on your behalf but does not inspect, transmit, or receive their data. Review any script before enabling it.

Third parties

No data is sold to third parties. No data is transferred to third parties (there is no data to transfer). No data is used or transferred for purposes unrelated to the extension's single purpose, for advertising, or to determine creditworthiness or for lending purposes.

Children's privacy

MonkeyScript does not collect data from anyone, including children.

Changes to this policy

If a future version of MonkeyScript ever changes any of the above (for example, by adding an optional sync feature), this policy will be updated before that version is published, and the change will be noted in the extension's changelog.