Are they any yu gi oh online games that are free and have no download

I'm looking, but Kaiba Corp Virtual Dueling System is a free downloadable game and it's awesome...
Yes there are.
http://yugiohnetwork.com/
or duelingnetwork.com

Dueling network is better out of the 2 and has ocg cards however. dont do it it does not help you just say i not doing this, it does not help.

Avoid Dueling Network the game is up to the discretion of the players and the Admin are payed off by players to agree with them, just always go with the official thing