Top 5 Open Source Trading Platforms in 2025
In today’s fast-paced markets, algorithmic and automated trading have become accessible to everyone thanks to powerful open source platforms. Whether you’re a retail trader experimenting with strategies or an institutional quant building multi-asset models, these five projects stand out in 2025 for their maturity, community support, and feature sets. 1. QuantConnect Lean Engine QuantConnect’s Lean Engine is the battle-tested open source backbone of the QuantConnect cloud platform. Written in C# with Python bindings, Lean supports equities, forex, futures, options, and cryptocurrencies. ...
