Yu-Gi-Oh! Deck Builder

Search for cards using the search bar, then drag and drop them into your Main Deck, Extra Deck, or Side Deck zones. DeckPen automatically checks banlist legality and deck size limits. Once you're done, click Export to save as YDK or share your deck with a link.

Yes! DeckPen is completely free. Build unlimited decks, export unlimited YDK files. No sign up, no credit card required.

Yes. Click Share Deck to generate a link. Anyone with the link can view and copy your deck — no account needed.

Yes. Switch between TCG, OCG, and Master Duel banlists in the toolbar. DeckPen automatically flags illegal cards and prevents you from adding them to your deck.

Yes. Export as YDK for YGOPro/EDOPro simulators, or copy your deck list as formatted text for Master Duel, DuelingBook, or tournament registration.

The Main Deck holds 40-60 cards (monsters, spells, traps). The Extra Deck holds up to 15 Fusion, Synchro, XYZ, and Link monsters. The Side Deck holds up to 15 cards for swapping between duels in a match.