Java constraint-solver

Open-source Java projects categorized as constraint-solver

Top 3 Java constraint-solver Projects

constraint-solver
  1. Timefold Solver

    The open source Solver AI for Java and Kotlin to optimize scheduling and routing. Solve the vehicle routing problem, employee rostering, task assignment, maintenance scheduling and other planning problems.

  2. SaaSHub

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  3. Choco

    An open-source Java library for Constraint Programming

    Project mention: Three Stabs at a Typed Schema DSL in Kotlin | dev.to | 2026-05-12

    Every classical solver library starts the same way: a constructor for each kind of variable, references kept as locals, constraints as objects imposed onto the Problem. Choco in Java, Z3 via its Python and Java bindings, and combo's first version all look like this.

  4. OptaPlanner

    Java Constraint Solver to solve vehicle routing, employee rostering, task assignment, maintenance scheduling, conference scheduling and other planning problems.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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  • A note from our sponsor - SaaSHub
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    SaaSHub helps you find the best software and product alternatives Learn more →

Index

What are some of the best open-source constraint-solver projects in Java? This list will help you:

# Project Stars
1 Timefold Solver 1,681
2 Choco 770
3 OptaPlanner 490

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