head to head · open source
Kestra vs Queuer
Kestra has 28,148 GitHub stars, 2,999 forks, 713 open issues and last shipped yesterday. Queuer has 1,150 stars, 46 forks, 1 open issues and last shipped 2 months ago. Kestra leads on adoption by 2,348% (28,148 vs 1,150 stars). Kestra is written in Java under Apache-2.0; Queuer is written in Swift under MIT. Kestra has attracted 11% as many forks as stars, Queuer 4%. Kestra 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
| Kestra | Queuer | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 1.1K |
| License | Apache-2.0 | MIT |
| Written in | Java | Swift |
| Last push | 2026-09-17 | 2026-07-15 |
| Forks | ⑂ 3.0K | ⑂ 46 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Kestra if
- You weight community size — 28K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick Queuer if
- You want the Queuer feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches Swift
- You evaluated both and Queuer fits your workflow better
About Kestra
Kestra is an open source, event driven orchestration platform for data, AI, and infrastructure workflows. It operates in the Java based ecosystem and is licensed under Apache 2.0. The project provides a unified interface for both scheduled and real time automation, supporting declarative workflow definitions in YAML while also offering visual and AI assisted authoring.
read the full Kestra overview →
About Queuer
Queuer Queuer is a queue manager built on top of OperationQueue and Dispatch (aka GCD). It allows you to create asynchronous and synchronous tasks easily, all managed by a queue, with just a few lines. Features [x] Works on all Swift compatible platforms (Linux, Android, and Windows included) [x] Easy to use [x] Well documented (100% documented) [x] Well tested (100% of code coverage) [x] Create an operation block [x] Create a single operation [x] Create chained operations [x] Manage a centralized queue [x] Create unlimited queues [x] Declare how many concurrent operations a queue can handle [x] Create semaphores…
read the full Queuer overview →
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Frequently asked questions
Is Kestra or Queuer more popular?
Kestra has 28,148 GitHub stars and Queuer has 1,150. Kestra has the larger community by that measure.
Are Kestra and Queuer free?
Both are open source. Kestra is licensed under Apache-2.0 and Queuer under MIT. Neither carries a licence fee.
What is the difference between Kestra and Queuer?
Kestra is written in Java and Queuer in Swift. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Kestra or Queuer?
Choose Kestra if you want the larger community (28,148 stars) or its Apache-2.0 licence terms. Choose Queuer if its feature set, stack or MIT licence fits better. Both are self-hostable.