Prefect vs Windmill
Side-by-side comparison of two AI agent tools
Short answer
- Pick Prefect for: prefect is a workflow orchestration framework for building resilient data pipelines in Python. Pick Windmill for: open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs.
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Prefectopen-source
Prefect is a workflow orchestration framework for building resilient data pipelines in Python.
Windmillopen-source
Open-source developer platform to power your entire infra and turn scripts into webhooks, workflows and UIs. Fastest workflow engine (13x vs Airflow). Open-source alternative to Retool and Temporal.
Metrics
| Prefect | Windmill | |
|---|---|---|
| Stars | 24.0k | 18.1k |
| Star velocity /mo | 314.05263157894734 | 316.10526315789474 |
| Commits (90d) | 397 | 1.3k |
| Releases (6m) | 10 | 10 |
| Downloads (30d, npm + PyPI) | 6.7M | — |
| Overall score | 0.7715233777169829 | 0.8093821444423039 |
Pros
- +提供丰富的内置功能如调度、缓存、重试机制，大幅减少样板代码编写
- +支持动态工作流和事件驱动的自动化，能够适应复杂的数据处理场景
- +既可以自托管也可以使用托管云服务，提供灵活的部署选择和完整的监控能力
- +Multi-language support with automatic UI generation from scripts in Python, TypeScript, Go, Bash, SQL, and more
- +High performance workflow engine claiming 13x faster execution than Airflow
- +Self-hostable open-source solution with AGPLv3 license providing full control and customization
Cons
- -专门针对 Python 生态系统，对使用其他编程语言的团队不够友好
- -学习曲线可能较陡峭，从简单脚本迁移到 Prefect 工作流需要重新设计架构
- -AGPLv3 license may restrict some commercial use cases and require careful compliance consideration
- -Being a comprehensive platform may introduce complexity for simple automation tasks
- -Self-hosting requires infrastructure management and maintenance overhead
Use Cases
- •ETL/ELT 数据管道：从多个数据源提取数据，进行转换并加载到数据仓库
- •机器学习工作流：自动化模型训练、验证和部署的端到端流程
- •定期数据处理任务：如每日报表生成、数据清理和业务指标计算
- •Building internal APIs and webhooks from existing scripts without additional infrastructure
- •Creating automated workflows for background jobs and data processing pipelines
- •Developing low-code internal applications with custom UIs for non-technical team members
FAQ
- Which is more popular, Prefect or Windmill?
- Prefect has more GitHub stars (23,964 vs 18,092).
- Which is more actively developed, Prefect or Windmill?
- Windmill had more commits in the last 90 days (1,264 vs 397).
- Should I use Prefect or Windmill?
- Compare their capabilities, limitations and "best for" notes above. Both are open source, so trying each on a small task is the fastest way to decide.