head to head · open source
conductor vs aperture
conductor has 32,207 GitHub stars, 1,009 forks, 253 open issues and last shipped today. aperture has 733 stars, 36 forks, 99 open issues and last shipped 9 months ago. conductor leads on adoption by 4,294% (32,207 vs 733 stars). conductor is written in Java under Apache-2.0; aperture is written in Go under Apache-2.0. conductor has attracted 3% as many forks as stars, aperture 5%. conductor 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
| conductor | aperture | |
|---|---|---|
| GitHub stars | ★ 32K | ★ 733 |
| License | Apache-2.0 | Apache-2.0 |
| Written in | Java | Go |
| Last push | 2026-09-18 | 2025-12-21 |
| Forks | ⑂ 1.0K | ⑂ 36 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick conductor if
- You weight community size — 32K 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 conductor
Conductor is an Apache 2.0 licensed, event driven agentic workflow engine written in Java that provides durable and highly resilient execution for applications and AI agents, aimed at teams running microservices, AI agents, and adaptive workflow graphs that need orchestration they can version, inspect, and recover.
read the full conductor 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 conductor or aperture more popular?
conductor has 32,207 GitHub stars and aperture has 733. conductor has the larger community by that measure.
Are conductor and aperture free?
Both are open source. conductor is licensed under Apache-2.0 and aperture under Apache-2.0. Neither carries a licence fee.
What is the difference between conductor and aperture?
conductor 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, conductor or aperture?
Choose conductor if you want the larger community (32,207 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.