Mendix
Windmill
| Feature | Mendix | Windmill |
|---|---|---|
| Pricing | Free / from $60/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.2 / 5 | 4.4 / 5 |
| Best For | enterprises, manufacturing, financial-services, government | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2005 | 2022 |
| Visual Modeling | ✓ | ✗ |
| Collaboration | ✓ | ✗ |
| Cloud Deployment | ✓ | ✗ |
| Ai Assisted Development | ✓ | ✗ |
| Marketplace | ✓ | ✗ |
| Version Control | ✓ | ✗ |
| Multi Cloud | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Mendix Pros
- Strong collaboration between business and IT
- Visual modeling with extensible platform
- Backed by Siemens for enterprise trust
- Excellent for complex business applications
✗ Mendix Cons
- Standard plan pricing is very high
- Vendor lock-in with proprietary framework
- Performance overhead compared to custom code
✓ 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
Mendix is built for enterprises and manufacturing, with a focus on visual-modeling and collaboration. 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 $60/mo for Mendix. That $50/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.
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.