Windmill vs ILLA Builder: Which Should You Choose in 2026?
Choosing between Windmill and ILLA Builder comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Windmill
Open-source developer platform for scripts
Best for you if:
- • You want the higher-rated option (8.2/10 vs 7.7/10)
- • Windmill is an open-source developer platform for internal tools
- • It runs scripts and workflows with a visual builder
ILLA Builder
Open-source low-code platform
Best for you if:
- • Open-source low-code platform
- • Build apps with drag-and-drop interface
| At a Glance |  Windmill | |
|---|---|---|
Price | Free + Paid | Free + Paid |
Best For | Low-Code Backend | Low-Code Backend |
Rating | 82/100 | 77/100 |
| Feature | Windmill | ILLA Builder |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| Editorial Score | 82 | 77 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | Low-Code BackendWorkflow Automation | Low-Code BackendApp Builders |
How Windmill and ILLA Builder Compare
Windmill
Open-source developer platform for scripts
Free tier available · 82/100 score
ILLA Builder
Open-source low-code platform
Free tier available · 77/100 score
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Windmill
Want the highest-rated option?
Windmill: 82/100. ILLA Builder: 77/100.
Go with: Windmill
Value user reviews?
Neither has user reviews yet.
Go with: Windmill
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Both are low-code backend tools. Compare their specific features to decide.
How important are ratings?
Windmill scores higher: 82/100 vs 77/100.
Key Takeaways
Windmill
- Higher score: 82/100 vs 77
- Free tier available
- Our pick for this comparison
ILLA Builder
The Bottom Line
Windmill (82/100) is our pick.
Frequently Asked Questions
Is Windmill or ILLA Builder better?
Windmill scores 82/100 in our evaluation. Both are freemium.
What are Windmill and ILLA Builder used for?
Windmill: Open-source developer platform for scripts. ILLA Builder: Open-source low-code platform.
What does Windmill cost vs ILLA Builder?
Windmill is freemium (free tier + paid plans). ILLA Builder is freemium (free tier + paid plans). Visit their websites for detailed pricing.