Deckbuilder Yu-Gi-Oh! TCG
Build your Yu-Gi-Oh! deck.
See how it really plays.
Browse 12,000+ cards, build your Main, Extra and Side decks, and get live composition analysis and opening-hand odds — in the browser, no account to start.
No account to start · Works on mobile · Your deck stays saved as you build
Features
Everything you need to build
From the card browser to statistical analysis, everything lives in a single page.
Card browser
Search among 12,000+ cards with advanced filters: type, attribute, level, archetype, banlist, format…
Deck editor
Main Deck, Extra Deck, Side Deck. Drag and drop, click, Ctrl+click for the side. TCG rules validation in real time.
Statistical analysis
M/S/T ratio, level curve, attributes, types, archetypes, average ATK. Everything updates in real time.
Hand test
Draw a random opening hand (5 or 6 cards), draw an extra card, restart at will.
Siding patterns
Prepare your card swap strategies by matchup. What to put In/Out depending on whether you play first or second.
Formats & Banlist
TCG, OCG, Speed Duel. Filtering by banlist status (Forbidden, Limited, Semi-Limited) directly in the search.
Deck Editor
Drag, click, build.
Drag & drop or a simple click to add cards. The type is automatically detected — Fusion, Synchro, Xyz and Link go directly to the Extra Deck. Ctrl+click for the Side Deck.
- Real-time TCG rules validation
- Main Deck (40–60), Extra Deck (0–15), Side Deck (0–15)
- Persistent session — your deck stays between reloads
Analysis
Know your odds before you play.
Opening hand probabilities, M/S/T ratio, level curve, archetypes and average ATK — everything recalculates instantly as you build.
- Draw probability for any card in your deck
- Opening hand consistency score
- Live stats — no refresh needed
Community Decklists
Decks shared by players
Magistus
Magistus — Amadora WCQ Regional – September 13th 2026
Power patron
Power patron — Bogota WCQ Regional – September 6th 2026
Artmage
Artmage — Vancouver Genesys Regional – September 12th 2026
Super Quant
Super Quant — Indianapolis Genesys Regional – September 12th 2026
Tournament Tracker
Log your results.
See your real win rate.
Record each round against the exact deck version you played, then see which matchups you actually lose and where Going 1st vs Going 2nd makes the difference.
- Round-by-round results linked to the exact deck version you played
- Win rate breakdown: Going 1st vs Going 2nd
- Matchup stats by opponent archetype
- Full event history with notes and location
Regional — Lyon
Purrely
Matchup breakdown
FAQ
Frequently asked questions
YGO-Decklab is an online Yu-Gi-Oh! TCG deckbuilder. It lets you build your deck (Main Deck, Extra Deck, Side Deck), analyze its composition, simulate opening hands and plan your competitive siding strategies.
The Main Deck must contain between 40 and 60 cards. The Extra Deck can hold up to 15 cards (Fusion, Synchro, Xyz, Link). The Side Deck can hold up to 15 cards for swaps between duels.
A Starter is a card that kicks off the deck's main combo. Having at least 1 Starter in your opening hand is often essential to establish your board. We recommend 9 to 12 copies of Starters in a 40-card deck.
Consistency is calculated using the hypergeometric law. For a 40-card deck with 9 Starters, the probability of drawing at least 1 in a 5-card opening hand is about 79%. YGO-Decklab calculates these probabilities automatically for every card role.
Siding means swapping cards between the Main Deck and the Side Deck between two duels of the same match. The goal is to adapt your deck to the opposing archetype by adding cards that are more effective against it (IN) and removing the least useful ones (OUT).
Basic access to YGO-Decklab is free: deckbuilder, composition analysis, hand simulation and banlist lookup are all available without registration. Some advanced features will be offered in a premium plan.
Official resources
Open the deckbuilder
and start building.
No sign-up to start — create an account when you want to save a deck.