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JQuantLib
Quantitative finance framework written entirely in Java
What it is
A free, open-source framework for quantitative finance written entirely in Java. It brings the ideas of QuantLib to the Java platform, with tools for pricing, interest rate curves and other financial calculations. Programmers and researchers building quantitative applications in Java are the target users. Its design follows QuantLib, so users coming from the C++ library should still check that the specific products they need are covered.
At a glance
Research onlyOur rating, based on popularity, maintenance and how ready it is for real use.
| Best for | Professional quants |
|---|---|
| Used for | Strategy research, Data analysis |
| Markets | Multi-market |
| Stack | Java |
| Learning curve | Steep learning curve |
| Practical value | Medium practical value |
| Cost | Free and open source |
| Hardware | No GPU needed |
| Maintenance | No commits in over six months |
GitHub stars, last 30 days
Daily snapshots since 2026-09-28 (up to 30 days): +1 over the period, now 156. Gaps mean no snapshot was taken that day.
JQuantLib is a free, open-source, comprehensive framework for quantitative finance, written in 100% Java.
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