kitio.aiAgent Zero vs Windmill
A side-by-side look at pricing plans, free tiers, features, pros and cons, updated for 2026. Agent Zero is completely free, while Windmill is freemium.
At a glance
Best for
Pricing model
Starting price
Free plan
Made by
Based in
Rating
Key features
- Docker Linux desktop
- Web UI
- Project-based memory
- Browser and terminal tools
- Skills and plugins
- Multi-language scripts
- Flow orchestration
- Auto-generated UIs
- Internal app builder
- AI agent steps
| Feature | Agent Zero | Windmill |
|---|---|---|
| Best for | Open-source agent framework with its own Docker desktop | Code-first platform for scripts, workflows, apps and AI agents |
| Category | Agents & automation | Agents & automation |
| Pricing model | Free | Freemium |
| Starting price | Free | $120/mo |
| Free plan | Yes, fully free | Yes |
| Made by | Agent Zero | Windmill Labs |
| Based in | – | France |
| Rating | No ratings yet | No ratings yet |
| Key features |
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Pricing compared
Agent Zero is completely free, while Windmill is freemium.
Free plan
Cheapest paid plan
Top plan
Free trial
2 plans
Free and Open-source
Free
- Unlimited executions
- 3 workspaces, up to 50 users
- Max 4 groups
Enterprise
From $120/mo
- $20/mo per builder seat
- Unlimited workspaces and users
- Observability and security features
- 1-month free trial
Prices in USD, checked Oct 28, 2026 or later. Plans change often, so confirm on each tool's site before you buy.
Pros and cons
Agent Zero
- Free and self-hosted
- Isolated in a container
- Very flexible and hackable
- Needs Docker and some know-how
- Results depend on the model you choose
Windmill
- Real code in many languages
- Fast and self-hostable
- Combines jobs, flows and apps
- Requires programming skills
- Smaller connector library than no-code tools
Which one should you choose?
Choose Agent Zero if you want:
- Free and self-hosted
- Isolated in a container
- Very flexible and hackable
Watch out: needs docker and some know-how.
Choose Windmill if you want:
- Real code in many languages
- Fast and self-hostable
- Combines jobs, flows and apps
Watch out: requires programming skills.
Agent Zero vs Windmill FAQ
What is the difference between Agent Zero and Windmill?
Agent Zero: Open-source agent framework with its own Docker desktop. Windmill: Code-first platform for scripts, workflows, apps and AI agents. Both are agents & automation tools.
Is Agent Zero or Windmill cheaper?
Agent Zero is completely free, while Windmill is freemium.
Do Agent Zero and Windmill have free plans?
Agent Zero: Yes, fully free. Windmill: Yes.
Who makes Agent Zero?
Agent Zero is made by Agent Zero.
Who makes Windmill?
Windmill is made by Windmill Labs, based in France.
Which should I choose, Agent Zero or Windmill?
Choose Agent Zero if you value free and self-hosted and isolated in a container. Choose Windmill if you value real code in many languages and fast and self-hostable.