backtrader is a Python framework for developing, backtesting, and running trading strategies. Its Cerebro engine coordinates strategies, data feeds, brokers, indicators, analyzers, and execution. Developers can combine multiple strategies, instruments, and timeframes while resampling or replaying market data. The framework includes a large indicator library, custom indicator support, analyzers, position sizing, commissions, and trading calendars. Its broker simulation supports market, limit, stop, trailing, OCO, and bracket-style orders along with slippage and volume filling. Backtrader can also work with live data and brokerage integrations and provides integrated charting for strategy analysis.

Features

  • Trading strategy backtesting and live execution
  • Multiple strategies, feeds, and timeframes
  • Integrated indicators and custom indicators
  • Broker and order execution simulation
  • Performance analyzers and position sizing
  • Data resampling, replaying, and plotting

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License

GNU General Public License version 3.0 (GPLv3)

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Additional Project Details

Programming Language

Python

Related Categories

Python Libraries

Registered

2026-08-17