Event-driven C# algorithmic trading engine for backtesting and live trading strategies across multiple financial markets, with Python support.
22.4K+109 this week5.4KC#Apache-2.0Updated yesterday
1 alternative
Best open-source alternatives to QuantConnect (2026)
Looking for a free, open-source alternative to QuantConnect? These 1 projects can replace it. Each one passed our quality screening and is explained in plain words, so you can compare stars, license and maintenance at a glance.
Quick comparison
| Project | Stars | License | Last commit |
|---|---|---|---|
| QuantConnect/Lean | ★ 22.4K | Apache-2.0 | yesterday |
FAQ
- Is there a free, open-source alternative to QuantConnect?
- Yes. The most popular open-source alternatives to QuantConnect on Repolode are Lean.
- Which QuantConnect alternative should I choose?
- Lean has the most GitHub stars and is released under Apache-2.0. Compare the license and last commit of each option in the table above before choosing.
How this list is made: AI reads each project's documentation to match it with products it can replace, every project passes our quality screening, and the list is ranked by GitHub stars. Stars updated Nov 7, 2026. How Repolode works