Timefold Solver

Timefold Solver is an open source optimization engine for scheduling and vehicle routing, released under the Apache License 2.0 and available from Maven Central. Developers build their own planning models in Java or Kotlin, describe the constraints and let the solver search for better plans. The vendor presents it as the continuation of Red Hat's OptaPlanner, built by that project's creator and team. The site lists quickstarts for common problems: vehicle routing, maintenance scheduling, job shop scheduling, conference scheduling, school timetabling, employee shift scheduling and task assignment. It is aimed at engineering teams that need planning logic embedded in their own applications and is compatible with major frameworks and platforms in the Java and Kotlin ecosystems. Support is offered through a community Discord and a discussion forum. The solver library itself is free to use under its open source license. Timefold also sells a hosted platform of scheduling APIs, including Field Service Routing, Employee Shift Scheduling, Pickup and Delivery Routing and Task Scheduling. That platform has three tiers. Spark gives headless API access, Flow adds dashboards, score analysis and multi user collaboration, and Horizon adds what if scenarios, an efficiency analysis tool, custom constraints and white glove onboarding. Prices for those tiers are not shown on the pricing page, which directs visitors to start with a tier.