Free trading tools

Tools for your own trades that run entirely in your browser. No sign-up, no cookies, and nothing you enter or drop on these pages is sent anywhere.

Free tools, the question each answers and what it needs
ToolThe question it answersWhat you give itLink
Trade statsWhat does my own trade history show?Your trade fileOpen
Prop-firm challenge simulatorHow would my past trading days have fared under a challenge’s rules?Your trade file, or win rate and average win and loss; the rulesOpen
Lot size calculatorHow many lots match the amount I chose to risk at this stop?Balance, risk amount, stop distance, value per pointOpen
Disposition-effect calculatorWere winning positions sold more readily than losing ones?Four counts of positions sold and heldOpen
Pass-rate calculator (for firm operators)What are one cohort’s evaluation pass rate and payout rate?Cohort countsOpen

The trade-file tools read MT5 and MT4 reports, IBKR Flex Query files and Tradovate order exports (all in beta), and a plain CSV template. They measure your own past trades and describe what happened; they do not tell you what to trade, what size to use or when to exit.

donttrade measures your own past trades. It is not investment advice, does not recommend any security, trade, size or exit, and is not registered as an adviser. Past results do not predict future results.