Use Microsoft Excel to manage your Doomtown collection.
This spreadsheet contains many features to aid your Doomtown collecting and deck building.

It is column A and B which is key to using this tool.

Column A is where you record the number of cards you own for each unique card name there is. The Collection Analysis tab will detail what your collection is made up of.

Column B is used for deck building. You can use all the type and keyword filters to isolate specific cards and record the number you selected. Then you can use the Deck Analysis tab to see how the deck looks.

Note: The data contained only has unqiue entries and from the first set a card appeared in.