Zuul
Zuul: A strong self-hosted choice for dependency-aware project gating and shared queues. Ranked #24 of 58 in Continuous Integration Software by our editors (6.8/10); pricing: Free plan; best for cross-project change gating.
At a glance
- Editor score6.8 / 10
- PricingFree plan
- Best forCross-project change gating
- Free planYes
- Paid fromFree
- Facts checked21 Sep 2026
Where it wins
- Tests proposed changes before merging with speculative merges
- Manages cross-project dependencies and shared change queues
- Supports VMs, Kubernetes pods, and static hosts
Where it doesn't
- Requires a self-hosted CI infrastructure
- No hosted option for teams seeking managed CI
- Does not provide verified caching
Our verdict on Zuul
Zuul is an open-source continuous integration, delivery, and deployment system built around project gating and cross-project dependencies. It is intended for organizations that operate their own CI infrastructure and need changes tested before merging across related projects. Zuul runs Ansible playbook-based jobs against changes from Gerrit, GitHub, GitLab, and Pagure, with YAML configuration for tenants and project pipelines. Its web dashboard, REST API, and live log streaming provide several ways to monitor and integrate with its CI workflows.
The central strength is dependency-aware gating. Zuul supports speculative merging, shared change queues, and cross-project dependency testing, allowing related proposed changes to be evaluated together before they enter a repository. Job inheritance can help structure Ansible-based workloads across projects, while build artifact URLs allow outputs to be stored, shared, and consumed by subsequent jobs. These capabilities make Zuul a focused fit for engineering groups where merge order and coordination across repositories are important.
Resource management is another significant part of the system. Zuul can work with cloud virtual machines, Kubernetes pods, and static hosts, with integrations that include AWS, Azure, Kubernetes, OpenStack, Elasticsearch, MQTT, and SMTP. The tradeoff is operational ownership: Zuul is self-hosted and does not offer a hosted option, so teams must provide and manage the surrounding CI environment. Organizations seeking cross-project gating, configurable pipelines, and control over their infrastructure should consider Zuul; teams looking for managed CI or verified caching should choose an alternative.
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Zuul pricing
Zuul fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Hosted option | No |
| Self-hosted runners | Yes |
| Parallel jobs | Not verified |
| Included build minutes | Not verified |
| Pull request checks | Yes |
| Pipeline configuration | Yaml |
| Artifact or dependency cache | Not verified |
| Deployment | Self-hosted |
| Platforms | Web, Linux |
| Support | Community, Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 9 integrations: Gerrit, Git, GitHub, GitLab, Pagure, AWS … |
| Pricing | Free plan |
| Website | zuul-ci.org |
| Facts checked | 21 Sep 2026 |
Zuul integrations
Zuul lists 9 integrations on its own site.
- Gerrit
- Git
- GitHub
- GitLab
- Pagure
- AWS
- Azure
- Kubernetes
- OpenStack
Alternatives to Zuul
- GitHub ActionsA flexible CI/CD platform with strong GitHub integration and a low-cost entry tier.9.4
- GitLab CI/CDA flexible GitLab-integrated CI/CD system with strong pipeline orchestration.9.3
- TeamCityA flexible CI/CD platform for teams working across JetBrains tools and major VCS providers.9.1
Also Ranked In
Zuul is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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