Mailchimp
Windmill
| Feature | Mailchimp | Windmill |
|---|---|---|
| Pricing | Free / from $13/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.3 / 5 | 4.4 / 5 |
| Best For | small-businesses, startups, solopreneurs, e-commerce | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2001 | 2022 |
| Email Campaigns | ✓ | ✗ |
| Automation | ✓ | ✗ |
| Landing Pages | ✓ | ✗ |
| Audience Segments | ✓ | ✗ |
| Analytics | ✓ | ✗ |
| Templates | ✓ | ✗ |
| A B Testing | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Scheduling | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ Mailchimp Pros
- Free tier for up to 500 contacts
- Easy drag-and-drop email builder
- Built-in automation workflows
- Good reporting and analytics
✗ Mailchimp Cons
- Gets expensive as list grows
- Automation less powerful than competitors
- Limited A/B testing on lower plans
✓ 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
Mailchimp is built for small businesses and startups, with a focus on email-campaigns and automation. Windmill targets developers and devops teams and leads with workflow-editor and script-to-ui.
Pricing is close: Windmill starts at $10/mo versus $13/mo for Mailchimp — not a deciding factor on its own.
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.
