head to head · open source
Kestra vs aperture
Kestra has 28,148 GitHub stars, 2,999 forks, 713 open issues and last shipped yesterday. aperture has 733 stars, 36 forks, 99 open issues and last shipped 9 months ago. Kestra leads on adoption by 3,740% (28,148 vs 733 stars). Kestra is written in Java under Apache-2.0; aperture is written in Go under Apache-2.0. Kestra has attracted 11% as many forks as stars, aperture 5%. 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 | aperture | |
|---|---|---|
| GitHub stars | ★ 28K | ★ 733 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-17 | 2025-12-21 |
| Forks | ⑂ 3.0K | ⑂ 36 |
| 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 aperture if
- You want the aperture feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Go
- You evaluated both and aperture 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 aperture
🥷 FluxNinja Aperture Aperture is a distributed load management platform designed for rate limiting, caching, and prioritizing requests in cloud applications. Built upon a foundation of distributed counters, observability, and a global control plane, it provides a comprehensive suite of load management capabilities. These capabilities enhance the reliability and performance of cloud applications, while also optimizing cost and resource utilization. Integrating Aperture in your application through SDKs is a simple 3 step process: Define labels : Define labels to identify users, entities, or features within your ap…
read the full aperture overview →
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Frequently asked questions
Is Kestra or aperture more popular?
Kestra has 28,148 GitHub stars and aperture has 733. Kestra has the larger community by that measure.
Are Kestra and aperture free?
Both are open source. Kestra is licensed under Apache-2.0 and aperture under Apache-2.0. Neither carries a licence fee.
What is the difference between Kestra and aperture?
Kestra is written in Java and aperture in Go. 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 aperture?
Choose Kestra if you want the larger community (28,148 stars) or its Apache-2.0 licence terms. Choose aperture if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.