head to head · open source
Kestra vs one
Kestra has 28,181 GitHub stars, 3,005 forks, 713 open issues and last shipped 2 days ago. one has 1,745 stars, 533 forks, 771 open issues and last shipped 2 days ago. Kestra leads on adoption by 1,515% (28,181 vs 1,745 stars). Kestra is written in Java under Apache-2.0; one is written in JavaScript under Apache-2.0. Kestra has attracted 11% as many forks as stars, one 31%. 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 | one | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 1.7K |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | JavaScript |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 3.0K | ⑂ 533 |
| 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 one if
- You want the one feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches JavaScript
- You evaluated both and one 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 one
OpenNebula is an open source cloud management platform, licensed under Apache 2.0, for building and operating private clouds, edge infrastructures, distributed cloud deployments, and AI Factories.
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Frequently asked questions
Is Kestra or one more popular?
Kestra has 28,181 GitHub stars and one has 1,745. Kestra has the larger community by that measure.
Are Kestra and one free?
Both are open source. Kestra is licensed under Apache-2.0 and one under Apache-2.0. Neither carries a licence fee.
What is the difference between Kestra and one?
Kestra is written in Java and one in JavaScript. 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 one?
Choose Kestra if you want the larger community (28,181 stars) or its Apache-2.0 licence terms. Choose one if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.