Are these trading tools free?
Yes. Every tool on this page is free to use without signing up. Signing in only adds things like saving a watchlist or a portfolio.
Which tools update live?
Tools marked Live update through the trading day: straddle charts, the option chain, open interest, gamma exposure, the stock heatmap, GIFT Nifty and others. The rest are updated after the close or when new data comes out.
Which tool should I start with as an options trader?
Most option traders start with the straddle chart and the option chain: the straddle shows how much movement the market is pricing and how fast premium is melting, and the chain shows prices and open interest at every strike.
Can I test a strategy before trading it?
Yes. The backtest runs a straddle or strategy over past days, paper trading lets you trade with play money at live prices, and the option chain replay shows any past day minute by minute.
Is this investment advice?
No. The tools show market data and calculations for information and learning only.