Backtest any trading strategy on your own data

Not on its own — Pine Script only runs inside TradingView. That's exactly the gap this Pine Script backtester fills: it has its own Pine parser and converter built in, which reads your strategy or indicator and turns it into JavaScript. From there it replays your script bar by bar over the candle data you upload, so you get a TradingView-style backtest without ever leaving your browser.

Yes, completely free. There's no sign-up, no account, no API key, and no cap on how many times you convert or run a strategy. Since everything happens client-side in your browser, there's no server cost to pass on to you.

No — your data stays on your device. Both your candle file (Excel or CSV) and your strategy, whether it's Pine Script, Python or a built-in, are processed entirely in your browser. Nothing is uploaded, stored or sent to any server, so your trading data and strategy logic stay private.

Basically any market you can get candle data for. Choosing an instrument just auto-fills its lot size, tick size, price precision and currency, and covers popular ones like Nifty 50, Bank Nifty and Sensex; MCX Gold, Silver and Crude Oil; crypto pairs like Bitcoin, Ethereum, Solana, BNB and XRP; and forex pairs such as EURUSD, USDJPY and EURJPY. Don't see your market? Pick Custom and set your own quantity and tick size — the price candles always come from your own file either way.

Keep it simple: a sheet with timestamp (or datetime), open, high, low and close columns — volume is optional. Name the sheet "candles" and it will be picked automatically; otherwise the tool just reads the first sheet in the file.

You can backtest on 1m, 3m, 5m, 10m, 15m, 30m, 1h, 2h, 4h or 1D candles. The tool resamples your data upward automatically, so if you upload 1-minute candles you can test any higher timeframe from that same file. The one thing you can't do is go below the timeframe your original data was recorded in.

Yes. Even if your script is an indicator rather than a strategy, the converter can still turn it into a backtest — it builds entries and exits from the buy and sell signals the indicator plots or alerts on, and it clearly notes that assumption in the converter output so you know exactly how it interpreted your script.

Yes — no coding needed. Switch the strategy source to Built-in and pick from ready-made, no-code strategies: moving average crossover, price vs. moving average, MACD, Supertrend, Donchian channel breakout, Parabolic SAR, ADX, RSI, Bollinger Bands, Stochastic, opening range breakout, VWAP cross, or a simple buy-and-hold benchmark. Tweak the settings, add a stop loss, take profit or trailing stop if you want one, then run it on your own candles — fills and results follow the exact same rules as a Pine Script backtest.

Very close, by design. Order fills follow TradingView's own conventions — stop and target hits are checked against each bar's high and low, using the same bar-path heuristic TradingView relies on to decide which level gets hit first. That said, small differences can show up because TradingView's own data feed, sessions, commissions and Bar Magnifier settings won't exactly match your uploaded file, so it's worth spot-checking a few individual trades before trusting the totals.

No AI involved — it's a fully deterministic Pine Script parser and code generator. Feed it the same script twice and you'll get the same JavaScript and the same backtest results every time, with nothing left to chance. It also means that if something in your script isn't supported, you get a clear error with a line number instead of a silent guess.

A few advanced features aren't supported yet: other symbols inside request.security, maps, matrices, user-defined types, methods, libraries, and per-trade lookups like strategy.opentrades.entry_price(). Drawing-only calls such as plot, label and table are simply skipped, since they don't affect how trades are placed. For the complete, up-to-date list, check the Supported Pine features page.

No — this tool is for research and education only, not financial advice. A backtest just simulates how a strategy would have performed on historical data; it can't guarantee or predict future results. Please read the risk disclaimer before risking real money on any strategy.