Backtrader vs Forex Tester (2026)
Backtrader (free open-source event-driven backtesting framework for python, no longer actively maintained) and Forex Tester (windows bar-replay simulator for manual forex backtesting, sold as a one-time license) solve backtesting differently. The table below compares them on verified specs and pricing; full details are in each review.
Side by side
| Backtrader | Forex Tester | |
|---|---|---|
| Overall score | 6.8 / 10 | 6.8 / 10 |
| Engine type | event-driven | bar-replay |
| Pricing model | open-source | one-time |
| Free tier | Yes | Yes |
| Entry price | $0 | $149 one-time |
| Languages | Python | C++, Delphi, no-code (manual replay) |
| Asset classes | stocks, ETFs, futures, forex (spot), crypto (via community data feeds), CFDs | forex, crypto, stocks, indices, commodities, metals, ETFs, futures (Online version) |
| Bundled data | None. Bring your own data. Loaders exist for CSV, pandas DataFrames, and Yahoo Finance (the online loader breaks periodically as Yahoo changes its API); live feeds come from Interactive Brokers, Oanda (legacy v1 API), and Visual Chart. No bundled historical dataset of any kind. | Free Basic Data covers 18 symbols with medium-quality 1-minute bars and monthly updates. The paid Super Data subscription covers 860+ symbols (131 forex pairs, 569 stocks, 111 indices, 22 commodities, 20 metals, crypto) with real tick data, floating spreads, up to 25 years of history, and daily updates. |
| Finest resolution | tick (tick data supported; resampling/replay down from ticks to any timeframe) | tick |
| Live trading | Yes | No |
| Options support | No | No |
| Open source | Yes | No |
Backtrader
Free open-source event-driven backtesting framework for Python, no longer actively maintained
Forex Tester
Windows bar-replay simulator for manual forex backtesting, sold as a one-time license
Frequently asked questions
Is Backtrader better than Forex Tester?+
They target different users. Backtrader: python-comfortable retail quants who want a free, battle-tested event-driven backtester with abundant learning material, and who will accept a frozen codebase, byo data, and manual walk-forward in exchange for zero cost. Forex Tester: discretionary forex (and cfd/futures) traders on windows who want realistic manual bar-replay practice and journaling rather than code-driven quantitative research. Our scores: Backtrader 6.8/10, Forex Tester 6.8/10.
Which is cheaper, Backtrader or Forex Tester?+
Backtrader entry pricing: $0 (open-source). Forex Tester: $149 one-time (one-time). See each review for full verified pricing tables.
Educational content only, not investment advice. Specs and prices come from each platform's official pages; see the individual reviews for sources and last-verified dates.