Prow
Prow: A specialized open-source CI system for teams running GitHub workflows on Kubernetes. Ranked #28 of 58 in Continuous Integration Software by our editors (6.4/10); pricing: Open source; best for kubernetes teams running GitHub presubmit systems.
At a glance
- Editor score6.4 / 10
- PricingOpen source
- Best forKubernetes teams running GitHub presubmit systems
- Paid fromFree
- Facts checked22 Sep 2026
Where it wins
- Runs presubmit, postsubmit, and periodic jobs on Kubernetes
- Automates GitHub statuses, merge actions, and slash-command workflows
- Provides dashboards, artifacts, Prometheus metrics, and structured logs
Where it doesn't
- Requires user-operated Kubernetes infrastructure
- Has no hosted option or hosted build-minute allowance
- Focuses primarily on GitHub-centric CI operations
Our verdict on Prow
Prow is an open-source, Kubernetes-based CI/CD system for organizations operating their own build infrastructure. It responds to repository events with presubmit checks for pull requests, postsubmit jobs, and periodic jobs, while supporting GitHub status reporting, policy enforcement, automated pull-request merging, and configurable slash-command chat-ops. Its components run as Kubernetes services and schedule jobs as pods across one or more build clusters, making it a fit for teams managing multiple repositories and Kubernetes-based CI environments.
The strongest fit is its connection between GitHub workflow automation and Kubernetes scheduling. Prow handles GitHub webhooks, reports job status, manages merge automation, and offers merge-queue visibility through its dashboard. Job definitions can be kept in repository YAML files, while artifact publishing and viewing, Prometheus metrics, and structured logs support operational visibility. Integrations with Gerrit, Slack, Google Cloud Storage, and Azure Blob Storage extend the system beyond its core GitHub workflow, although its primary operating model remains GitHub-centric.
Prow uses an open-source pricing model and is deployed and operated by the user on Kubernetes rather than selected through hosted plans. That approach suits organizations with Kubernetes expertise, internal infrastructure ownership, and requirements for configurable repository automation. It is less suitable for teams seeking a managed CI service, a hosted build environment, or a simpler setup path. The product also does not provide a verified caching capability, so teams that prioritize caching as a central CI feature should consider alternatives with that capability explicitly included.
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Prow pricing
Prow fact sheet
| Free plan | Not verified |
|---|---|
| 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, Browser extension |
| Platforms | Web |
| Support | Community, Docs |
| Built for | Mid-market, Enterprise (editorial estimate) |
| Integrations | 5 integrations: GitHub, Gerrit, Slack, Google Cloud Storage, Azure Blob Storage |
| Pricing | Open source |
| Website | docs.prow.k8s.io |
| Facts checked | 22 Sep 2026 |
Prow integrations
Prow lists 5 integrations on its own site.
- GitHub
- Gerrit
- Slack
- Google Cloud Storage
- Azure Blob Storage
Alternatives to Prow
- 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
Prow is ranked in 3 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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