Next free-source hunt
We check for new free financial data every Wednesday.
Tools / Backtesting
quantconnect.com/

QuantConnect

Freemiumauth: accountProvider terms#backtesting#algorithmic-trading#cloud✓ verified Oct 28, 2026

QuantConnect

Cloud-based algorithmic trading platform for researching and backtesting strategies in Python or C#. The Free plan covers cloud backtesting only; paper and live trading need a paid plan. Plans: Free, Quant Researcher, Team, Trading Firm and Institution.

Verdict

Powerful cloud backtesting engine. The Free plan is enough to learn and backtest on minute, hour and daily data; paper trading, live trading, tick/second data and local coding need a paid plan. Steep learning curve but worth it for serious algo traders.

Get the free weekly email

Free weekly email of newly verified free data. Unsubscribe by emailing us.

Information and education only. Not financial, investment, legal or tax advice. Listings can be inaccurate, incomplete or out of date and are provided "as is". Free tiers, limits and licenses belong to each provider and can change, so check the provider's own terms before you rely on them. Terms & Disclaimer