Privacy
Policy

BlockCraft is a Chrome extension that grows Minecraft-style blocks in the corner of your browser as you browse the web. It is a passive idle game. It has no backend, no server, no account system, and no analytics of any kind.

This policy explains exactly what data BlockCraft reads, what it stores, and what it never touches. It is intentionally short because there is very little to say.

BlockCraft reads one thing and one thing only: the hostname of the URL of the page you are currently visiting.

For example, if you are on https://www.youtube.com/watch?v=abc123, BlockCraft reads "youtube.com" — nothing else. It uses this hostname to classify the site into one of five categories (Social, Video, Shopping, News, Work) so it knows which block type to grow.

BlockCraft does not read:— The full URL path or query parameters— Any page content, text, or HTML— Form inputs, passwords, or any typed data— Cookies or local storage belonging to other sites— Your browsing history— Anything at all beyond the current tab's hostname

BlockCraft stores your garden state using chrome.storage.local — a browser API that saves data exclusively to your own device.

The stored data consists of:— The list of blocks in your garden (position, type, growth stage, break hits)— Your current score— Your widget visibility preference (shown or hidden)

This data never leaves your browser. It is not transmitted to any server. It is not shared with anyone. It exists solely so your garden persists between browser sessions.

You can delete all stored data at any time by clicking "Reset All Blocks" in the extension popup, or by uninstalling the extension entirely.

BlockCraft makes zero network requests. There is no server it communicates with. No data is ever sent anywhere.

The extension is entirely self-contained. The page classifier, the block logic, the canvas renderer — everything runs locally in your browser using only the resources bundled with the extension at install time.

You can verify this yourself by opening Chrome DevTools → Network tab while the extension is active. You will see no requests originating from BlockCraft.

BlockCraft requests the following Chrome permissions:

storage — Required to save your garden state between sessions using chrome.storage.local. Without this, your blocks would disappear every time you closed a tab.

tabs — Required to detect when you switch between tabs so the correct block type continues growing on the active tab. BlockCraft does not read tab titles, URLs from the tabs API, or any tab content.

activeTab — Required to inject the floating widget canvas into the current page. This is the least-privileged way to display content on a page.

host_permissions () — Required so the content script (the widget) can run on any website. Without this, blocks could only grow on specific whitelisted domains. No page content is ever read.

None of these permissions are used to collect, transmit, or analyse any user data.

BlockCraft uses no third-party services, SDKs, analytics platforms, advertising networks, or tracking libraries of any kind.

The extension is built with plain JavaScript and no external dependencies. There are no calls to Google Analytics, Mixpanel, Sentry, or any similar service.

The Google Fonts stylesheet (Press Start 2P, VT323) used on this marketing website is loaded by the website — not by the extension itself.

BlockCraft does not knowingly collect any information from anyone, including children under 13. Because no data is collected at all, the extension is appropriate for all ages.

If this policy ever changes — for example if a future version of BlockCraft adds a sync feature — we will update this page and change the "Last Updated" date at the top. Material changes will also be noted in the Chrome Web Store update notes.

Given the nature of the extension (no data collection), we do not anticipate significant changes to this policy.

If you have any questions about this privacy policy or about how BlockCraft works, please reach out:

Email: hello@theoath.studio

We are a small independent studio and will respond to all genuine privacy enquiries.