Windmill
Windmill: A flexible open-source automation platform that combines code, visual flows, and self-hosting. Ranked #5 of 37 in API Integration Platforms by our editors (8.8/10); pricing: Free plan · 30-day trial; best for teams wanting open-source workflow automation.
At a glance
- Editor score8.8 / 10
- PricingFree plan · 30-day trial
- Best forTeams wanting open-source workflow automation
- Free planYes
- Paid from$120/mo
- Workflow builderHybrid
- Founded2022 · San Francisco and Paris
- Facts checked20 Sep 2026
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
Our verdict on Windmill
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.
Your product? Our editors can test Windmill in depth and publish a review, labelled as paid · from $149/mo →
Windmill pricing
All 2 Windmill plans and prices →
Windmill fact sheet
| Free plan | Yes |
|---|---|
| Paid from | $120/mo |
| Workflow builder | Hybrid |
| Self-hosted deployment | Yes |
| Custom connectors | Yes |
| Webhook triggers | Yes |
| Included executions | Not verified |
| Reusable workflows | Yes |
| Free trial | 30 days |
| Deployment | Cloud, Self-hosted |
| Platforms | Web, Windows, Linux |
| Compliance & security | SOC 2, SSO/SAML |
| Support | Email, Community, Docs, Live chat · 24/7 |
| Built for | Solo, Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 200+ integrations: Airtable, AWS, BigQuery, GitHub, GitLab, Google Calendar … See all → |
| Pricing | Free plan · 30-day trial (source) |
| Website | windmill.dev |
| Facts checked | 20 Sep 2026 |
Windmill integrations
Windmill lists 200+ integrations on its own site — the 16 named here are the ones its pages call out.
- Airtable
- AWS
- BigQuery
- GitHub
- GitLab
- Google Calendar
- Google Drive
- Google Sheets
- Gmail
- MongoDB
- MySQL
- OpenAI
- Slack
- Microsoft Teams
- S3
See all Windmill integrations →
Alternatives to Windmill
- n8nFlexible automation for technical teams that need code, branching, and deployment choice.9.4
- CeligoA broad integration platform covering workflows, APIs, data transformation, and hybrid connectivity.9.1
- Apache CamelA broad, developer-oriented integration framework with 350+ connectors and flexible runtimes.9.0
See all Windmill alternatives →
Windmill vs the competition
- Windmill vs n8n
- Windmill vs Celigo
- Windmill vs Apache Camel
- Windmill vs Azure Logic Apps
- Windmill vs Google Cloud Application Integration
- Windmill vs WSO2 Micro Integrator
Compare Windmill with any tool side by side →
Also Ranked In
Windmill is ranked in 9 of our directories; the 6 strongest besides API Integration Platforms.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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