5 items
Customizes Dueling Book rooms, hosting defaults, Card Pools, colors, and deck sorting. THIS TOOL IS UNOFFICIAL! I AM NOT AFFILIATED WITH DUELINGBOOK IN ANY WAY. I JUST LOVE YU-GI-OH! AND HAVE PLAYED ON DB (AND DN BEFORE IT) FOR OVER 15 YEARS. I FINALLY WANTED TO INCLUDE SOME FUNCTIONALITY THAT I'VE THOUGHT WOULD BE NICE FOR A LONG TIME. This extension adds some useful functionality to Duelingbook.com (it does nothing outside of Duelingbook.com). The features added are: 1. Customize your Duel Room default settings. Don't want to have to change the room to your preferred one every time you click into the Duel Room? Want to hide some of the rooms you never see or engage with? This extension can help with that. 2. Deck Constructor remembers which Cardpool (banlist) was set when you last clicked "Save" while that deck was active. This means you could, for example, set the Cardpool to Goat or Edison, click "Save", and the next time you load that deck up in Deck Constructor it'll automatically set the correct Cardpool for you. 3. Use any of the formats available on Format Library as of September 01, 2026 (Except Edison and Goat since DB has those by default). They're disabled by default, but you can go in an enable, for example, REDU or Tengu or whatever you prefer, then these options will show up in Deck Constructor's Cardpool dropdown menu. This way you can easily deck build for your favorite formats without worrying about accidentally including a card that you're not allowed to. This functionality also works with function #2 above, so if you set a REDU Cardpool and then save a deck, the next time you enter Deck Constructor it will load the REDU cardpool for you. 4. Custom Sort button. The app allows you to edit the sorting functionality DB uses on a per-card-type basis. So for example I left the Main deck sorting how it was, but I set Synchros, Fusions, and XYZ to sort by Level/Rank primary and alphabetical afterwards. This new sort button shows up just below the current alphabetical sort button. But you could also sort by, for example, number of cards in deck. Maybe you prefer your spells to go Singles, then Doubles, than Three-ofs, with ties broken alphabetically. Well now that's super easy. Make DB sort decks the way you think they should be sorted. 5. Customize many of the visuals of DB. Tweak colors to be what you want, remove the gridlines that run along the top and bottom of the screen. Set a custom background image. alter opacity. If you mess something up, no worries, just reset to default with a single click. I now have my favorite art sitting as DB background, with the opacity set just how I like.
Sep 11, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.