Free Tools
Work Out the Risk Before You Switch It On
Expected value calculator
Does the average trade win or lose once wins, losses and costs are counted? The first question any bot has to pass.
Open nowMargin calculator
How much margin a trade uses, how far price can move before a margin call, and what a bot that adds positions does to it.
Open nowMartingale calculator
Doubling down looks like a winning streak until one long run goes against it. See the step where the account runs out of margin.
Open nowPosition size calculator
Work out how big a trade can be for a risk you choose, from the stop distance.
Open nowRisk of ruin calculator
The odds a run of losses takes the account to a floor you pick, from your own win rate and size.
Open nowGrid calculator
Spacing, profit per grid and fees for a grid bot, and what happens when price leaves the range.
Open nowBot Types We Cover
Every Kind of Automated Trading, Explained Straight
Grid bots
Orders placed at set price steps. How the settings, fees and trends decide whether it holds up.
Martingale and recovery
Sizing up after a loss. The maths of why it feels safe and where it breaks.
DCA bots
Buying in steps over time. What it changes and what it cannot fix.
Forex EAs and robots
MetaTrader expert advisors: how to test one, install one and spot a bad one.
Crypto bots and code
Exchange bots, open source tools and the APIs behind them: how each one works and where it can fail.
AI trading
What machine learning and chat tools can and cannot do for a trading idea.
TradingView alerts
Pine Script, alerts and webhooks that place trades, and where they fail.
Prop firm bots
How challenge rules, daily loss limits and drawdown rules interact with an automated strategy.
How It Works
Five Steps From Idea to A Bot You Can Trust
Learn
What each kind of bot does, in plain words, with how it fails first.
Test
Check a strategy for overfitting, survivorship bias and costs before believing it.
Size
Work out how much you can lose and how big to trade, with the numbers on screen.
Run
Set it up on your platform: settings, hosting and the checks to do first.
Watch
Know when a bot is drifting from its test and when to switch it off.
Our results come from tests we ran
We replayed simple grid and doubling-ladder rules on past prices. The grid tests include a trading fee and the ladder tests include no costs; neither includes spread or slippage, and neither has a later test period. The Our results page lists every limit, and the method page explains how figures are labelled. Example numbers elsewhere are made up and say so.
Why This Site
Built Around What Goes Wrong
Risk first
Margin calls, drawdown, slippage and overfitting are where bots fail. Every guide starts there, not with a promise.
Tests we ran
Our results page shows backtests on past prices with the data, rules and files named. They are hypothetical, and it lists what they leave out.
Education only
No signals, no copy trading, no profit promises and no advice. You make your own decisions with better numbers.
FAQ
Frequently Asked Questions
Is this financial advice?
No. It is general information and education. It does not consider your goals, money or situation, and nothing here is a recommendation to buy, sell or hold anything.
Do you sell trading bots or signals?
Not today. The first job is free tools and honest guides. Tested open source bots may be listed later, free to download, and anything sold would say plainly what it costs and what it cannot do.
Are the results real?
The Our results page publishes backtests we ran on past prices, with the dates, rules and settings shown. They are hypothetical: no real trades were placed, the page lists what the tests leave out, and a backtest does not predict what a live account will do.
Why test a bot before running it?
Many bots look good until the market does something they were not tuned for. Testing, sizing and a demo run show the worst case while it still costs nothing.
Does it cost anything?
The calculators and guides are free and need no account.
When do the tools open?
The first set is open: expected value, margin, position size, martingale, grid and risk of ruin calculators, with more being added. The tools page lists every one.
Know the Risk Before You Run It
Free calculators and guides, added regularly. Leave your details and we will email you when new ones go up.
Trading carries a risk of loss