RN TradeLab is a free backtesting and research platform for NSE stocks, built so traders don't have to guess if a strategy actually works. Walk-forward testing, write your own indicators and strategies, and Pattern Probability - real historical odds for any candlestick pattern, sample size always shown, never oversold. Gold unlocks Live Chart and Pattern Probability early. Built solo, after losing money on ideas that only looked good in hindsight.
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Hey everyone 👋
I'm the solo builder behind RN TradeLab. Here's the honest origin story: I kept losing money on strategies that looked great in hindsight but fell apart the moment I actually traded them. I wasn't disciplined about testing ideas before risking real capital — and when I looked for a tool that would force that discipline on me, most options were either too complex for someone without a programming background, or too shallow to actually trust.
So I built the tool I wished existed. The core is completely free — walk-forward backtesting with honest out-of-sample checks (no quietly overfitting to history and calling it a strategy), write your own indicators and strategies with real code, and a Knowledge Base with live fundamentals and market data.
The thing I'm most excited to share today is Pattern Probability, part of the Gold tier — instead of a chart just telling you "this looks like a Hammer," it shows you exactly how many times that pattern happened historically on a stock, and what price actually did afterward. If the sample's too small to mean anything, it says so plainly instead of showing you a confident-looking percentage that's really just noise.
This is very much a living product, not a finished one — I'm shipping new things regularly, and a lot of what's already in there came directly from people telling me what they actually needed.
I'd genuinely love your feedback — what's missing, what's confusing, what you'd want next. I'm here all day and will reply to everything.