Best QuantLib Alternatives in 2026
The top QuantLib alternatives are QuantConnect, ProRealTime and Backtrader: 15 quant tools our editors would look at instead of QuantLib, in our ranking order.
QuantLib: A free modeling library for quantitative finance, not a trading or backtesting platform. Where it falls short: no backtesting, live trading or paper trading features.
Switching from QuantLib? For most quant tools buyers the best QuantLib alternative is QuantConnect, built for end-to-end multi-asset quant research and trading. On a budget, Composer starts at $10/mo.
Why People Look for a QuantLib Alternative
- No backtesting, live trading or paper trading features
- No historical market data feature
- Self-hosted library with community support
- No strategy backtesting — 10 of the alternatives below have it
- No live trade execution — 8 of the alternatives below have it
Quick Picks by What You Need
- Best overallQuantConnect9.3
End-to-end multi-asset quant research and trading
Visit QuantConnect - Lowest priceComposer8.6
Paid plans from $10/mo
Visit Composer - Best free optionQuantConnect9.3
Has a free plan
Visit QuantConnect - Best for strategy backtestingQuantConnect9.3
Strategy backtesting (QuantLib: no)
Visit QuantConnect
All 15 QuantLib Alternatives, Ranked
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
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Best forEnd-to-end multi-asset quant research and trading
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Paper trading
A multi-asset research and trading workflow with backtesting, paper trading, and live deployment.
- Live trade execution
- Paper trading
- Strategy backtesting
9.3/10★★★★★Visit QuantConnect -
Best forMulti-platform charting and automated trading
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Paper trading
Multi-platform charting, backtesting and automated trading through broker partners.
- Live trade execution
- Paper trading
- Strategy backtesting
9.0/10★★★★☆Visit ProRealTime -
Best forDevelopers backtesting strategies in Python
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Historical data access
A free, open-source Python framework for strategy research and broker-connected trading.
- Live trade execution
- Strategy backtesting
- Historical data access
8.8/10★★★★☆Visit Backtrader -
Best forFutures traders who want to simulate and backtest
- Better than QuantLib:
- Paper trading
- Editor score 8.7 vs 7.3
A futures-focused brokerage and trading platform with charting, backtesting and simulated trading.
- Paper trading
8.7/10★★★★☆Visit NinjaTrader -
Best forNo-code strategy creation for stocks and ETFs
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Paper trading
A visual, no-code strategy builder with backtesting and automated trading for stocks and ETFs.
- Live trade execution
- Paper trading
- Strategy backtesting
8.6/10★★★★☆Visit Composer -
Best forInvestors building factor-based stock systems
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Historical data access
A web-based toolkit for ranking, screening, backtesting, and trading stock strategies.
- Live trade execution
- Strategy backtesting
- Historical data access
8.5/10★★★★☆Visit Portfolio123 -
Best forMachine-learning quantitative research
- Better than QuantLib:
- Strategy backtesting
- Historical data access
- Editor score 8.4 vs 7.3
A flexible Python toolkit for researching and backtesting stock strategies, run on your own infrastructure.
- Strategy backtesting
- Historical data access
8.4/10★★★★☆Visit Qlib -
Best forPortfolio analytics and allocation research
- Better than QuantLib:
- Editor score 8.3 vs 7.3
A web-based toolkit for portfolio backtesting, risk analysis, and allocation research.
8.3/10★★★★☆Visit site -
Best forOptions strategy backtesting
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Historical data access
A Windows-focused options tool for historical backtests, position tracking, and broker orders.
- Live trade execution
- Strategy backtesting
- Historical data access
8.2/10★★★★☆Visit site -
Best forEnterprise buy-side portfolio operations
- Better than QuantLib:
- Editor score 8.1 vs 7.3
A broad enterprise system for portfolio operations, trading, compliance and post-trade workflows.
8.1/10★★★★☆Visit Bloomberg AIM -
Best forC# strategy research and trading
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Paper trading
A Windows desktop suite for C# strategy research, testing and trading.
- Live trade execution
- Paper trading
- Strategy backtesting
8.0/10★★★★☆Visit Wealth-Lab -
Best forMarket-profile and paper-trading workflows
- Better than QuantLib:
- Strategy backtesting
- Live trade execution
- Paper trading
A desktop platform for chart analysis, Market Profile, backtesting, simulation and live trading.
- Live trade execution
- Paper trading
- Strategy backtesting
7.9/10★★★★☆Visit Linn Software -
Best forR-based multi-asset strategy research
- Better than QuantLib:
- Strategy backtesting
- Historical data access
- Editor score 7.8 vs 7.3
A free R framework for researching signal strategies across multi-asset portfolios.
- Strategy backtesting
- Historical data access
7.8/10★★★★☆Visit quantstrat -
Best forPortfolio optimization workflows in Python
- Better than QuantLib:
- Editor score 7.7 vs 7.3
A free, open-source Python library for building and analyzing portfolio allocations.
7.7/10★★★★☆Visit PyPortfolioOpt -
Best forDesktop charting and order execution
- Better than QuantLib:
- Paper trading
- Editor score 7.6 vs 7.3
A Windows platform for configurable market charts, market depth and order execution.
- Paper trading
7.6/10★★★★☆Visit Sierra Chart
QuantLib Alternatives: Common Questions
What is the best alternative to QuantLib?
QuantConnect: #1 in our Quant Tools ranking, with an editor score of 9.3 out of 10. A multi-asset research and trading workflow with backtesting, paper trading, and live deployment.
Is there a free alternative to QuantLib?
Yes. QuantConnect, ProRealTime, Backtrader, NinjaTrader and Composer have a free plan or a free tier (10 of the 15 alternatives on this page).
What is the cheapest paid alternative to QuantLib?
Of the alternatives here that publish a price, Composer starts lowest, at $10/mo.
Why do people look for QuantLib alternatives?
No backtesting, live trading or paper trading features; No historical market data feature; Self-hosted library with community support.
How do I switch from QuantLib?
Export your data from QuantLib (most tools have an export in their settings). Sign up for the alternative; start on its free plan or trial if it has one. Import your export and set up the integrations your team relies on. Run both side by side for a short while, then cancel QuantLib.
How to Switch from QuantLib
- Export your data from QuantLib (most tools have an export in their settings).
- Sign up for the alternative; start on its free plan or trial if it has one.
- Import your export and set up the integrations your team relies on.
- Run both side by side for a short while, then cancel QuantLib.
QuantLib vs Each Alternative
| # | Tool | Free plan | Paid from | Strategy backtesting | Live trade execution | Paper trading | Asset classes | Score |
|---|---|---|---|---|---|---|---|---|
| 18 | QuantLib | Yes | Free | No | No | No | 7.3 | |
| 1 | QuantConnect | Yes | Yes | Yes | Yes | Multi-asset | 9.3 | |
| 2 | ProRealTime | Yes | Yes | Yes | Yes | Multi-asset | 9.0 | |
| 3 | Backtrader | Yes | Free | Yes | Yes | Multi-asset | 8.8 | |
| 4 | NinjaTrader | Yes | Yes | 8.7 | ||||
| 5 | Composer | Yes | $10/mo | Yes | Yes | Yes | Stocks | 8.6 |
| 6 | Portfolio123 | Yes | Yes | Yes | Stocks | 8.5 | ||
| 7 | Qlib | Yes | Free | Yes | Stocks | 8.4 | ||
| 8 | Portfolio Visualizer | Yes | $30/mo | 8.3 | ||||
| 9 | OptionNet Explorer | No | £165/mo | Yes | Yes | Stocks | 8.2 | |
| 10 | Bloomberg AIM | 8.1 | ||||||
| 11 | Wealth-Lab | Yes | Yes | Yes | Multi-asset | 8.0 | ||
| 12 | Investor/RT | Yes | Yes | Yes | Multi-asset | 7.9 | ||
| 13 | quantstrat | Yes | Free | Yes | No | Multi-asset | 7.8 | |
| 14 | PyPortfolioOpt | Yes | Free | No | No | No | Stocks | 7.7 |
| 15 | Sierra Chart | No | Yes | 7.6 |
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update