Small interactive tools that do one thing and get out of the way. Calculators, converters, live charts.
Type entry, stop, and exit prices. Get the R-multiple — the gain or loss expressed as a multiple of the risk taken on the trade.
Punch in a strategy's win rate and trade count. Get the actual probability of seeing N losses in a row at least once across the run.
Slide your win rate. See the minimum reward-to-risk ratio your trades need before you start making money. Plus the inverse curve.
Type wins and total trades. Get the 95% confidence interval — the actual range your true win rate could be hiding inside given your sample size.
Drop in two candles' OHLC and see whether they form a true bullish or bearish engulfing — with the body-overlap percentage and a yes/no on each of the four classical criteria.