Tray.io
Windmill
| Feature | Tray.io | Windmill |
|---|---|---|
| Pricing | Contact sales | Free / from $10/mo |
| Free Plan | ✗ No | ✓ Yes |
| Rating | 4.2 / 5 | 4.4 / 5 |
| Best For | enterprises, revenue-operations, it-teams, integration-engineers | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2012 | 2022 |
| Visual Workflow Builder | ✓ | ✗ |
| Api Connectors | ✓ | ✗ |
| Data Transformation | ✓ | ✗ |
| Error Handling | ✓ | ✗ |
| Governance | ✓ | ✗ |
| Ai Assistant | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Tray.io Pros
- Handles complex enterprise workflows
- Strong API connector library
- Visual drag-and-drop builder
- Good error handling
✗ Tray.io Cons
- Enterprise pricing only
- Overkill for simple automations
- Requires technical knowledge
✓ 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
Tray.io is built for enterprises and revenue operations, with a focus on visual-workflow-builder and api-connectors. Windmill targets developers and devops teams and leads with workflow-editor and script-to-ui.
Tray.io uses custom enterprise pricing, while Windmill starts at $10/mo — a tangible advantage for teams with a fixed budget.
Windmill has a free plan, which gives it a meaningful edge for individuals and small teams exploring their options. Tray.io requires a paid subscription from day one.
Feature-wise, Windmill offers broader built-in capabilities (7 features vs 6), while Tray.io takes a more focused approach — which can mean a simpler, faster onboarding experience.
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.