dbt
Windmill
| Feature | dbt | Windmill |
|---|---|---|
| Pricing | Free / from $100/mo | Free / from $10/mo |
| Free Plan | ✓ Yes | ✓ Yes |
| Rating | 4.6 / 5 | 4.4 / 5 |
| Best For | data-teams, analytics-engineers, bi-teams, data-driven-companies | developers, devops-teams, internal-tools, data-pipelines |
| Founded | 2016 | 2022 |
| Sql Transformations | ✓ | ✗ |
| Data Testing | ✓ | ✗ |
| Documentation | ✓ | ✗ |
| Version Control | ✓ | ✗ |
| Scheduling | ✓ | ✓ |
| Lineage | ✓ | ✗ |
| Metrics Layer | ✓ | ✗ |
| Workflow Editor | ✗ | ✓ |
| Script To Ui | ✗ | ✓ |
| Approval Flows | ✗ | ✓ |
| Multi Language | ✗ | ✓ |
| Self Hostable | ✗ | ✓ |
| Audit Logs | ✗ | ✓ |
✓ dbt Pros
- Industry standard for data transformation in warehouses
- SQL-based (accessible to analysts, not just engineers)
- Excellent testing and documentation framework
- dbt Core is fully open-source and free
✗ dbt Cons
- dbt Cloud pricing can be steep for large teams
- Requires a data warehouse (does not store data)
- Learning curve for software engineering practices
✓ 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
dbt is built for data teams and analytics engineers, with a focus on sql-transformations and data-testing. 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 $100/mo for dbt. That $90/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.