head to head · open source
Temporal vs flowable-engine
Temporal has 24,138 GitHub stars, 2,068 forks, 956 open issues and last shipped yesterday. flowable-engine has 9,633 stars, 2,902 forks, 411 open issues and last shipped 16 days ago. Temporal leads on adoption by 151% (24,138 vs 9,633 stars). Temporal is written in Go under MIT; flowable-engine is written in Java under Apache-2.0. Temporal has attracted 9% as many forks as stars, flowable-engine 30%. Temporal was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| Temporal | flowable-engine | |
|---|---|---|
| GitHub stars | ★ 24K | ★ 9.6K |
| License | MIT | Apache-2.0 |
| Written in | Go | Java |
| Last push | 2026-11-02 | 2026-10-18 |
| Forks | ⑂ 2.1K | ⑂ 2.9K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Temporal if
- You weight community size — 24K stars and counting
- You want the MIT license terms
- Your stack matches Go
- You value the larger contributor base for long-term maintenance
pick flowable-engine if
- You want the flowable-engine feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and flowable-engine fits your workflow better
About Temporal
Temporal—durable execution platform Introduction • Getting Started • Contributing • Temporal Docs • Temporal 101 Introduction Temporal is a durable execution platform that enables developers to build scalable applications without sacrificing productivity or reliability. The Temporal server executes units of application logic called Workflows in a resilient manner that automatically handles intermittent failures, and retries failed operations. Temporal is a mature technology that originated as a fork of Uber's Cadence. It is developed by Temporal Technologies, a startup by the creators of…
read the full Temporal overview →
About flowable-engine
Flowable ======== Homepage: flowable / flowəb(ə)l / a compact and highly efficient workflow and Business Process Management (BPM) platform for developers, system admins and business users. a lightning fast, tried and tested BPMN process engine, CMMN case engine and DMN rule engine written in Java. It is Apache 2.0 licensed open source, with a committed community. can run embedded in a Java application, or as a service on a server, a cluster, and in the cloud. It integrates perfectly with Spring. With a rich Java and REST API, it is the ideal engine for orchestrating human or system activities. Introduction…
read the full flowable-engine overview →
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Frequently asked questions
Is Temporal or flowable-engine more popular?
Temporal has 24,138 GitHub stars and flowable-engine has 9,633. Temporal has the larger community by that measure.
Are Temporal and flowable-engine free?
Both are open source. Temporal is licensed under MIT and flowable-engine under Apache-2.0. Neither carries a licence fee.
What is the difference between Temporal and flowable-engine?
Temporal is written in Go and flowable-engine in Java. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Temporal or flowable-engine?
Choose Temporal if you want the larger community (24,138 stars) or its MIT licence terms. Choose flowable-engine if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.