QuantConnect (LEAN)
Cloud platform to research, backtest and trade strategies, built on the open-source LEAN engine.
A complete cloud lab with data included; one of the best places to learn quantitative trading.
Who it is for
Anyone who wants historical data for many markets already integrated, without downloading it.
Strengths
- The free plan includes unlimited backtesting and data for equities, indexes, FX, crypto, futures and options.
- The LEAN engine is open source (Apache-2.0) and can run on your own machine.
Good to know
- The free plan includes no live trading nodes (limit 0).
- Free plan limits: 1 backtest node, 1 research node, and minute, hour and daily data resolution.
- The pricing page does not show paid plan prices as text: check it there.
Want a bot built on QuantConnect (LEAN), or something similar?
We set it up, connect it to your accounts and keep it running.
Real-life uses
Momentum rotation strategy
Ranks a universe each month and rotates into the strongest, fully backtested first.
Sources
Every fact on this page comes from these sources, checked on 2026-10-24. If something has changed, the source wins; tell us at contact@tradebotcheck.com.
- https://www.quantconnect.com/pricing/: free plan contents and limits
- https://github.com/QuantConnect/Lean: Apache-2.0 license of the LEAN engine and activity
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PyBroker
Python framework for backtesting trading strategies, especially machine-learning ones, with a Numba-accelerated engine and walk-forward analysis.
Zipline Reloaded
Community-maintained version of Zipline, the event-driven Python backtester originally built and used by Quantopian.