Lay out one card. Fill in the deck. Print it.

Card-a-mon is a free editor for card games that runs in your browser, on a desktop or a phone. It takes a game from the first prototype to files a print shop will accept.

Cards from AXIOM, a paradox duel for two, made in Card-a-mon.

Design the card once

A card is a set of text and image boxes. You place them once and every card in the set shares that layout; what changes from card to card is the text and the pictures. Edit right on the card, and see it exactly as it will print.

The editor with AXIOM open: a text field selected on the first card, its font, size and weight in the panel beside it, and the fronts and backs of the cards laid out in a grid.

What you can do with it

Designing

Place boxes in millimetres
Drag, resize and rotate text and image boxes, or type exact positions. They snap to each other as you go.
See the cut before you print
Every card shows its bleed and its safe area, so art reaches the edge and text stays clear of the blade.
Set the type
Any Google Font, with bold, italic, colour and alignment, and small icons inline with the words.
Both sides
A two-sided set has a front and a back for every card.
Your own artwork
Upload images once and use them on any card in the project.

Filling in the deck

Work in a spreadsheet
Export the cards to CSV — a row per card, a column per box — edit them anywhere, and import them back.
Choose how many of each
Give a card a count, and that many copies go into the print.
Let an AI assistant help
Connect Claude or another assistant to fill in cards, rework their text, draw icons and bring in artwork. How to connect one.

Keeping your work

On every device
Projects are saved to your account and open wherever you sign in.
Try things safely
Duplicate a project to test an idea without touching the original.
Yours to take away
Download everything in your account as one SQLite file, or delete the account and all of it. There is no tracking and no advertising.
An A4 page from the PDF of AXIOM: eight cards in a three-by-three grid, ready to cut out.

Print it

At home

Generate a PDF sized to your paper, with your own margins and gaps, and cut marks to follow with scissors. Print a prototype for tonight's playtest, or send it to friends.

At a print shop

Generate a PNG of every card, bleed included, at the resolution the shop asks for — 300 DPI unless you change it. That is what The Game Crafter, MakePlayingCards and similar services take.