PlayingCards.io
A browser virtual tabletop with decks, pieces, counters, rooms, and light automation that needs no player install.
Why use it
It is useful for remotely validating turn structure, card distributions, and social rules, then sharing paper-like prototypes quickly.
Where it fits
Use prototypes and playtests to find core experience problems while they are still cheap to fix.
What to check
Free rooms and storage are limited, rules are not fully enforced, and original uploads, public sharing, and data retention require care.