Bubble
Windmill
| Feature | Bubble | Windmill |
|---|---|---|
| Pricing | Free / from $32/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.4 / 5 | 4.4 / 5 |
| Best For | non-technical-founders, startups, mvp-builders, agencies, solopreneurs | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2012 | 2022 |
| Visual Editor | ✓ | ✗ |
| Database | ✓ | ✗ |
| Workflows | ✓ | ✗ |
| Api Connector | ✓ | ✗ |
| User Auth | ✓ | ✗ |
| Responsive Design | ✓ | ✗ |
| Plugins | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Bubble Pros
- Can build genuinely complex applications
- Built-in database and user authentication
- Marketplace of plugins and templates
- API connector for any external service
✗ Bubble Cons
- Steep learning curve for no-code
- Performance can be slow at scale
- Vendor lock-in — hard to migrate away
✓ 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
Bubble is built for non technical founders and startups, with a focus on visual-editor and database. 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 $32/mo for Bubble. That $22/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.