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Paid plans start at $120/mo. There's also a free plan.
Windmill’s Free and Open-source plan costs $0 per month and includes unlimited executions, three workspaces, up to 50 users, 100 guest app users per 30 days and 10 GiB of workspace object storage. Enterprise starts at $120 per month. Beyond that starting price, the bill can grow with builders, other seats and workers. The pricing page offers monthly and annual billing, but does not publish annual per-month prices.
01Every plan, line by line
| Plan | Billed annually | Billed monthly | Built for |
|---|---|---|---|
| Free and Open-source | — | $0 | Teams evaluating or self-hosting Windmill |
| Enterprise | — | $120 | Teams needing enterprise controls and support |
Add-ons and overages
- Builders: $20 per month each; non-builders and external JWT users: $10 per month each.
- Workers: $50 per worker per month in the pricing simulator; the example lists two standard workers at $100 per month.
- The simulator lists eight native subworkers at $50 per month.
- The first 100 guests per 30 days are free; above that, 4 guests count as 1 seat, rounded up.
- A pricing simulator example totals $170 per month; that figure depends on its configured seats and compute units.
02What the plan grid doesn't tell you
Builder and user seats
Builders cost $20 per month each; non-builders and external JWT users cost $10 per month each. Enterprise SSO requires seats.
Worker capacity
The pricing simulator lists workers at $50 per worker per month; its example charges $100 for two standard workers.
Guest app usage
The first 100 guests per 30 days are free. Above that, four guests count as one seat, rounded up.
Self-hosting infrastructure
Docker and Kubernetes self-hosting avoid a hosted-service bill, but your team must provide and operate the infrastructure.
03Which plan should you buy?
| If you are… | Get | Why |
|---|---|---|
| Side projects and evaluations | Free and Open-source | It costs $0 per month and includes unlimited executions, within its workspace, user, guest and storage limits. |
| Small teams self-hosting | Free and Open-source | Use the free plan when its stated limits fit and your team can operate Docker or Kubernetes infrastructure. |
| Teams needing enterprise controls | Enterprise | Starts at $120 per month and includes audit logs, SAML, group synchronization and 24/7 priority support. |
04Is Windmill worth the money?
Windmill is worth paying for when Enterprise controls or support are requirements, or when the seat and worker costs remain reasonable for your workload. The free plan is a substantial starting point: executions are unlimited, with clear caps on workspaces, users, guests and storage. Self-hosting can suit teams that want infrastructure control and can operate it themselves, but it does not remove infrastructure costs. Model builder seats and workers in the pricing simulator before sizing a production deployment; annual per-month prices are not published.
Windmill pricing FAQ
How much does Windmill cost?
The Free and Open-source plan costs $0 per month. Enterprise starts at $120 per month. Builders cost $20 per month each, non-builders and external JWT users cost $10 each, and workers cost $50 per worker per month in the pricing simulator.
Is Windmill free?
Yes. The Free and Open-source plan costs $0 per month and includes unlimited executions, three workspaces, up to 50 users, 100 guest app users per 30 days and 10 GiB of workspace object storage.
What is a Windmill server?
Windmill is an orchestration platform that runs scripts and workflows on workers. You can use its hosted service or self-host with Docker or Kubernetes; workers run one script at a time using available CPU and memory.
What can make a Windmill bill increase?
Builders, non-builder and external JWT user seats, and workers add monthly charges. Guest app users above the first 100 per 30 days count toward seats. Enterprise starts at $120 per month, and self-hosting requires your own infrastructure.