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Windmill Dev vs Dagster

AI Automation tools comparison · Updated 2026

Choosing between Windmill Dev and Dagster? Both are popular AI Automation tools. Windmill Dev starts at Freemium and focuses on Multi-language support. Dagster starts at Freemium and specializes in Asset-centric orchestration. Here's a detailed side-by-side comparison to help you decide.

At a Glance

Windmill Dev Dagster
Category AI Automation AI Automation
Pricing freemium freemium
Starting Price Freemium Freemium
Best For developer-tools, open-source, workflows data-engineering, orchestration, python
Features 6 listed 6 listed

Windmill Dev

Open-source platform turning scripts into workflows, UIs, and APIs.

AI Automation freemium
VS

Dagster

Open-source asset-centric data orchestration for building and managing data pipelines.

AI Automation freemium

Feature Comparison

Windmill Dev Dagster
Multi-language support Asset-centric orchestration
Auto-generated UIs Software-defined assets
Flow builder Built-in testing
Scheduler Observability
Open source Partitions
Self-hostable Type system

Pricing Comparison

Windmill Dev

freemium

Free self-hosted. Cloud free tier. Team $10/mo per user. Enterprise $40/mo per user.

Dagster

freemium

Free open source. Dagster Cloud free tier. Plus from $100/mo. Pro custom pricing.

Pros & Cons

Windmill Dev

Pros
  • + Open source
  • + Multi-language
  • + Fast execution
  • + Self-hosting option
Cons
  • Small community
  • Niche audience
  • Limited documentation
  • Newer platform

Dagster

Pros
  • + Asset-centric approach
  • + Excellent testing
  • + Strong type system
  • + Good documentation
Cons
  • Learning curve
  • Smaller ecosystem than Airflow
  • Python-only
  • Resource intensive

The Verdict

Both Windmill Dev and Dagster are strong AI Automation tools. Windmill Dev stands out for Open source, making it ideal if that's your priority. Dagster excels at Asset-centric approach, which may be more important for your workflow.

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