Thinkorswim (from TDAmeritrade) has it for free. Just open a brokerage or IRA or something and you can access a paper trading account there; its among most powe

Thinkorswim (from TDAmeritrade) has it for free. Just open a brokerage or IRA or something and you can access a paper trading account there; its among most powerful trading platforms widely available to consumers, and is surprisingly user friendly.