Windmill review
A flexible open-source automation platform that combines code, visual flows, and self-hosting.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Windmill is an open-source workflow engine and developer platform for building API endpoints, integration workflows, internal tools, and user interfaces. It suits teams that want to combine code-based scripts with visual workflow design, while retaining the option to run the platform in Windmill Cloud or on infrastructure managed through Docker Compose or Kubernetes. Its supported script languages include TypeScript, Python, Go, Bash, and SQL, giving technical teams a direct path from automation logic to reusable workflows and APIs.
Pricing makes the product accessible for teams evaluating open-source automation. The Free and Open-source plan costs $0 per month and includes unlimited executions, self-host deployment on Fargate, Docker, or Kubernetes, and community support on Discord. The Enterprise plan starts at $120 per month, billed monthly, and adds audit logs, SAML support with group synchronization, a commercial license, and 24/7 priority support. A 30-day free trial is also listed. Teams should distinguish between the free open-source deployment model and the paid tier’s enterprise controls and support.
Windmill’s platform fit is strongest where workflows need more than simple point-to-point connections. It supports webhook, schedule, queue, database, and messaging triggers; branches, loops, retries, approvals, and subflows; resource-based integrations and secrets management; Git synchronization; CI/CD deployment; workers; job queues; logs; metrics; and observability. Named integrations include Airtable, AWS, BigQuery, GitHub, GitLab, Google Workspace services, MongoDB, MySQL, OpenAI, Slack, and Microsoft Teams. Choose Windmill for open-source control, self-hosting, and code-oriented automation. Teams seeking a wider named integration catalog or a lower-cost route to enterprise controls may prefer an alternative.
Windmill pros and cons
- Where it wins
- Free tier includes unlimited executions and self-host deployment
- Combines code-based scripts with a low-code visual flow editor
- Includes branches, retries, approvals, APIs, CI/CD, and observability
- Where it doesn't
- Enterprise features start at $120 per month
- Named integrations are narrower than broader integration platforms
- The hybrid workflow model may require technical ownership
Windmill fact sheet, pricing and score →
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