Stacker vs Windmill
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both Stacker and Windmill are credible internal tools tools, and the right pick comes down to your priorities.
Choose Stacker if you want a longer free trial (14 days). Turn spreadsheets into apps and portals.
Choose Windmill if you'd rather have a lower starting price (free – $10/user/mo), a free plan to start on and a higher overall rating (4.7/5). Internal tools and workflows from code.
Stacker vs Windmill: side by side
| Dimension | Stacker | Windmill |
|---|---|---|
| Starting price | From $59/mo | Free – $10/user/moWinner |
| Free plan | No | YesWinner |
| Free trial | 14 daysWinner | — |
| Pricing model | Subscription | Freemium |
| Best for | Agencies, Operations | Developers |
| Platforms | Web, Api | Web, Self Hosted, Api |
| Rating | 4.4/5 | 4.7/5Winner |
Stacker key facts
- Vendor
- Stacker
- Pricing
- Subscription — From $59/mo
- Free tier
- Free trial (14 days)
- Platforms
- Web, Api
- Best for
- Agencies, Operations
- Editor rating
- 4.4 / 5
- Founded
- 2017
- Headquarters
- London, United Kingdom
Windmill key facts
- Vendor
- Windmill
- Pricing
- Freemium — Free – $10/user/mo
- Free tier
- Yes
- Platforms
- Web, Self Hosted, Api
- Best for
- Developers
- Editor rating
- 4.7 / 5
- Founded
- 2022
- Headquarters
- San Francisco, CA, USA
Frequently asked questions
Is Stacker better than Windmill?
Neither is universally better — Windmill edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is Stacker or Windmill cheaper?
Windmill is the more affordable of the two to get started, at free – $10/user/mo. Stacker starts at from $59/mo; Windmill starts at free – $10/user/mo.
Can Stacker replace Windmill?
Yes for most teams — both are internal tools tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.