Backtesting Python Packages

vectorbt

The backtesting engine that gives you an unfair advantage. Run thousands of trading ideas before others finish one.

backtrader

Python Backtesting library for trading strategies

backtesting

🔎 📈 🐍 💰 Backtest trading strategies in Python.

pkscreener

A Python-based stock screener for NSE, India. PKScreener is an advanced free stock screener to find potential breakout stocks from NSE and show its possible breakout values. It also helps to find the stocks which are consolidating and may breakout, or the particular chart patterns that you're looking specifically to make your decisions.

lumibot

Backtesting and Trading Bots Made Easy for Crypto, Stocks, Options, Futures, FOREX and more. Lumibot also makes it very easy to run and backtest agentic AI trading strategies in a safer way.

qubx

Framework for quantitative strategies development, backtesting and live execution.

hftbacktest

Free, open source, a high frequency trading and market making backtesting and trading bot, which accounts for limit orders, queue positions, and latencies, utilizing full tick data for trades and order books(Level-2 and Level-3), with real-world crypto trading examples for Binance and Bybit

vibe-trading-ai

"Vibe-Trading: Your Personal Trading Agent"

hummingbot

Open source software that helps you create and deploy high-frequency crypto trading bots

lakeapi

Python API for accessing Lake high frequency tick trades & order book data

octobot-backtesting

OctoBot project backtesting engine

optimalportfolios

Implementation of optimisation analytics for constructing and backtesting optimal portfolios in Python

vector-ta

High-performance technical analysis indicators with optional SIMD/CUDA and language bindings.

stock-analysis-engine

Backtest 1000s of minute-by-minute trading algorithms for training AI with automated pricing data from: IEX, Tradier and FinViz. Datasets and trading performance automatically published to S3 for building AI training datasets for teaching DNNs how to trade. Runs on Kubernetes and docker-compose. >150 million trading history rows generated from +5000 algorithms. Heads up: Yahoo's Finance API was disabled on 2019-01-03 https://developer.yahoo.com/yql/

backtrader-next

Python Backtesting library for trading strategies

deltafq

Python 开源量化框架： 覆盖“研究、回测、交易”全生命周期，构建从零到实盘的工业级量化闭环工作流。

tradedesk

Event-driven Python framework for backtesting and live trading strategies.

nanobook

Rust-backed Python package for target-weight backtests, portfolio metrics, deterministic order-book simulation, and pre-trade risk checks

zvt

modular quant framework.

wingfoil

Python bindings for the wingfoil Rust library

polymarket-paper-trader

Paper trading simulator for Polymarket — built for AI agents. MCP server, live order books, strategy backtesting. Install: npx clawhub install polymarket-paper-trader

vectorbt-rust

The backtesting engine that gives you an unfair advantage. Run thousands of trading ideas before others finish one.

bbstrader

Simplified Investment & Trading Toolkit with Python & C++

empyrial

An Open Source Portfolio Management Framework for Everyone 投资组合管理