Backtesting libraries · Inactive

Zipline

Quantopian's event-driven backtester with the Pipeline API; the original repository is no longer maintained.

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GitHub stars20.2k

Forks5.1k

Last commit2024-02-13

LicenseApache-2.0

LanguagePython

StatusInactive

GitHub statistics as of 2026-11-10. Status: active = commits in the last 90 days, slowing = in the last year, inactive = older, archived = read-only.

Overview

Zipline powered the Quantopian platform, which closed in 2020. Its Pipeline API for cross-sectional factor screens is still admired, and it appears in well-known books on machine learning for trading. The original repository has not been updated for years and is hard to install on current Python; community forks keep it running.

Best for: Following older tutorials and books that use it, and cross-sectional equity factor research.

Strengths

Pipeline API for factor research
Realistic daily equity simulation
Lots of historical learning material

Limitations

Original repository unmaintained; installation is painful
Data bundles need setup work
Not suited to crypto or forex

Comparisons

Zipline vs Backtrader

Alternatives in Backtesting libraries

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All frameworks · Descriptions are our own summary and may lag behind each project's documentation. Check the project's license before using it in a product. Nothing here is investment advice.