Pulumi
Windmill
| Feature | Pulumi | Windmill |
|---|---|---|
| Pricing | Free / from $50/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.4 / 5 |
| Best For | developers, platform-engineers, polyglot-teams, cloud-architects | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2017 | 2022 |
| Programming Languages | ✓ | ✗ |
| Multi Cloud | ✓ | ✗ |
| State Management | ✓ | ✗ |
| Policy As Code | ✓ | ✗ |
| Secrets Management | ✓ | ✗ |
| Pulumi Ai | ✓ | ✗ |
| Drift Detection | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Pulumi Pros
- Use real programming languages instead of DSLs
- Strong typing and IDE support for infrastructure code
- Multi-cloud support with consistent API
- Pulumi AI generates infrastructure code from prompts
✗ Pulumi Cons
- Smaller community than Terraform
- State management requires Pulumi Cloud or self-hosting
- Less third-party provider coverage than Terraform
✓ Windmill Pros
- Open-source and self-hostable
- Supports Python, TypeScript, Go, Bash, SQL natively
- Auto-generates UI from script parameters
- Excellent scheduling and workflow orchestration
✗ Windmill Cons
- Smaller community than Zapier/n8n
- Self-hosting requires infrastructure knowledge
- Less polished documentation for beginners
The Verdict
Pulumi is built for developers and platform engineers, with a focus on programming-languages and multi-cloud. Windmill targets developers and devops teams and leads with workflow-editor and script-to-ui.
On pricing, Windmill is the clear winner for budget-conscious users — starting at $10/mo compared to $50/mo for Pulumi. That $40/mo difference adds up quickly for growing teams.
Both offer free plans, so you can test each with your real workflow before committing to a subscription.
Both tools are a solid fit for developers — in those cases, the decision often comes down to workflow style and how your team prefers to organize work.
This is a genuinely close comparison. If you can, sign up for both free trials (where available) and run a one-week test with your actual team tasks before deciding.