Six Pine Script backtesters that run outside TradingView, read from their own sites on 24 October 2026: what each runs, on which markets, what it charges in a backtest, what is free, and when to use it.
Each line is what the tool's own site says; the comparison pages hold the rest and the sources.
| TOOL | WHAT RUNS YOUR SCRIPT | MARKETS | COSTS AND CHECKS | FREE START |
|---|---|---|---|---|
| Alpha Charts | Pine v6, the script itself, on its own runtime | US stocks and ETFs; NQ, MNQ, ES and MES futures for signed-in accounts | 0.05% commission and 0.025% slippage per side by default; a held-out verdict on every run | Unlimited free backtests with an account, no card |
| Foresight | Pine v5 and v6, compiled, in the browser or a Windows app | Your own CSV files; crypto, forex and daily stocks through your own data credentials | Three fill models (parity, realistic, pessimistic); commission shown as cost drag | Free while in beta; price to be announced |
| Deepwick | A subset of Pine (Deepwick Script), unsupported lines flagged | Crypto on Binance and CFDs on forex, metals, energy, indices and large US stocks | Half the live spread on saved backtests, plus what the script sets | A free plan: 5 saved backtests, 5,000 bars each; Pro US$5 a month |
| PineTester | Pine v6 strategies, converted to Python and run in the cloud | Crypto spot pairs only | As the script sets them; a warning when fees are missing; a 70/30 hold-out | 1,500 credits once; EUR 4.99 or 9.99 a month, or pay per backtest |
| StratOwl | Pine v4 and v5, common calls translated, the rest skipped with a warning | Equities, crypto, forex and commodities, providers not named | Not mentioned on its backtester page | 3 runs a day with no account; a free Starter plan; Pro $19.99 a month |
| Stratest | Plain English rebuilt as Python; Pine v5 strategies rebuilt by a converter on paid plans | 103 assets across crypto, stocks, forex and commodities | Commission and slippage modelled; Monte Carlo and walk-forward statistics | 10 backtests a month; Pro $24.95 a month |
Stay with it when the chart you trade on is the point: it is the reference engine for Pine, it covers every market TradingView charts, and on Premium and higher Deep Backtesting runs the whole history. Set commission and slippage in the strategy's properties before you trust a result; its own documentation says a result without costs overestimates a strategy's past.
Leave it for a question it cannot answer: costs charged by default, a held-out period judged on its own, a sweep across hundreds of settings, walk-forward or robustness statistics, or history past what your plan loads. Pick the tool by market first, then by whether it runs your Pine as written or rebuilds it.
Whatever you use, expect numbers that differ from TradingView's: a different engine, different data and real costs. The honest tools say so, and the data and methodology behind this one is written out in Data and methodology.
For what it leaves out. It charges no trading costs unless the script sets them, it tests only the bars loaded on the chart (5,000 on the free plan; Deep Backtesting needs Premium), it has no held-out test and no optimiser, and it cannot sweep settings. Every tool here answers one or more of those; TradingView's own documentation warns that a result without costs overestimates a strategy's past.
Alpha Charts (Pine v6 on its own runtime), Foresight (Pine v5 and v6, compiled) and PineTester (Pine v6, converted to Python) run the script you paste. Deepwick runs the part of Pine its subset covers. StratOwl translates the common calls and skips the rest. Stratest rebuilds a strategy rather than running Pine.
Foresight is free while its beta lasts. StratOwl gives three runs a day with no account and has a free plan. Deepwick, Stratest and PineTester have free tiers with limits. Alpha Charts gives a free account unlimited backtests with no card, and every paid plan comes with 30 days money back.
Deepwick, PineTester (crypto only), StratOwl, Stratest and Foresight (with your own data or its feeds). Alpha Charts covers US stocks and ETFs, plus NQ, MNQ, ES and MES futures for signed-in accounts.
Not exactly, on any of them. TradingView's engine is the one Pine is written for; every alternative runs its own engine on its own data, and the honest ones say so. Foresight publishes how closely its trades match. Charging costs by itself lowers a result against TradingView's default of none.
Sources: each tool's own site, read on 24 October 2026, as listed on its comparison page; TradingView's Pine Script documentation and plan comparison. TradingView, Pine Script, Foresight, Deepwick, PineTester, StratOwl and Stratest belong to their owners; Alpha Charts is not affiliated with or endorsed by any of them. If anything here has changed, tell us and we will correct it.