Privacy Policy
Here's how the Packcraft Master Duel tracker handles your checklist and what may change if advertising is enabled. Last updated: November 9, 2026.
1. Checklist data saved in your browser
Packcraft stores the names of Secret Packs you mark as claimed in your browser's localStorage, under a key named packcraft.claimed.v1. The tracker uses that list to update its suggestions. It does not upload your claimed-pack checklist to a server, require an account, or connect to your Master Duel profile.
You can clear the checklist using Reset progress. You may also remove it by clearing your browser's website data.
2. Backups and card artwork
Export backup creates a JSON file in your browser. Import backup reads a file you select and updates this browser's checklist. These actions do not upload your data to Packcraft servers.
Card names, pack mappings, and cropped card artwork are served as part of the website. The tracker does not request data from the YGOPRODeck card API while you browse.
3. Hosting and basic access information
The company hosting this website may process information such as your IP address, browser details, and access logs to deliver pages, maintain security, and operate the hosting service. Its privacy practices depend on the hosting provider chosen by the site operator.
4. Optional Google AdSense advertisements
The site's advertising integration is disabled until the operator actively configures and enables it. If Google AdSense is enabled, Google and its advertising partners may use cookies, device identifiers, IP addresses, or similar technologies to provide, personalize, and measure advertising, subject to the choices and regulations that apply to you.
Google and other advertising vendors may use cookies based on your visits to this or other websites. You can review Google's advertising controls at My Ad Center and learn more at How Google uses information from partner websites. Depending on your region, you may also be offered consent choices through a consent management platform.
Advertising data processing is separate from the locally saved Packcraft checklist. The Packcraft application does not intentionally send the contents of that checklist to advertisers.
5. Your choices
You can use the planner without signing in. You can reset, export, or import your checklist at any time. You can also manage browser cookies and local storage through your browser settings and use any advertising privacy controls provided on the site when ads are enabled.
6. Contact and updates
For questions about this website's handling of personal information, contact the site operator at [public contact email to be added by the site operator before monetization].
This policy should be reviewed when hosting, advertising providers, consent mechanisms, or data practices change. It is a starting point for the site operator and may need adaptation for applicable privacy laws.