How it works | Playproof
Mac & iPad · native app coming soon

A workbench for the card game in your head.

Playproof keeps the numbers and the looks in separate drawers. Rebalance the whole game without nudging a pixel — restyle every card without retyping a word. Paste 120 rows, get 120 cards.

First cut-and-sleeve prototype in an afternoon. No account. Nothing leaves your Mac.

Card data
edit anything — the card redraws live
Layout A
{{ card.name }}
{art}
{{ card.type }}
{{ card.rules }}
⚔ {{ card.atk }}
Layout B
◆ {{ card.cost }} {art}
{{ card.name }}
{{ card.type }}
{{ card.rules }}
ATK {{ card.atk }}
Same data, two layouts — edit above and both redraw. That's the whole idea.
layout note: Layout A's title gets cramped on long names — redesign the header block? 🎨
mechanics note: this stat line is swingy — broke by turn 3 😅 → nerf the cost?
the core idea

Two drawers. One truth.

Card data and card design never touch — so one dataset drives every layout. Rebalance the numbers without nudging a pixel; restyle every card without retyping a word.

Drawer one

What a card is

Name, cost, rules, faction, art — each field with a real type. Define it once; reuse the template across every game.

nametext
costnumber
typecategory
artimage
rulesarea text
atknumber
Drawer two

What a card looks like

A drag-and-drop canvas. Place a title, an art frame, a cost badge — then point each at a field. This is X-Ray mode: every slot shows the field it's bound to. Drag to watch it become the finished card — then reroll the style.

the payoff

Design it once. Then go break things.

Rebalance at midnight. Reprint by 12:05.

Nerf a card, shift the whole cost curve, retune a keyword — the deck redraws as you type. Export a fresh print sheet and you're testing the fix tonight, not next month.

120 cards from one row of work.

You lay out a single card. Your spreadsheet becomes the deck — paste the rows and every card already knows its shape. Adding a card is adding a row, not a chore.

The build that worked is one click back.

Snapshot before a playtest, then wreck the balance on purpose. If the new idea face-plants, roll back. You never lose the version your group actually liked.

what's coming

The native app is almost here.

Rebuilt for Mac and iPad, with the same design-once, playtest-forever workflow. Here's where Playproof is going next.