Windmill vs Prefect: Features, Pricing and User Reviews 2026

Windmill

Open-Source Workflow Automation Platform

Workflow Automation Data Orchestration+1 more

Prefect

Open-Source Python Workflow Automation

ETL Workflow Automation+1 more

Windmill

Open-Source Workflow Automation Platform

Workflow Automation Data Orchestration+1 more

Prefect

Open-Source Python Workflow Automation

ETL Workflow Automation+1 more

Windmill

Windmill is a developer platform that combines code with visual workflow building. You can write scripts in Python, TypeScript, Go, Bash, or SQL, and the platform automatically creates user interfaces for them. Unlike traditional low-code tools, Windmill lets you use real code while still providing visual tools for non-developers.

The platform works as a workflow engine that connects different scripts together. You can schedule tasks, create APIs from your scripts, and build custom apps with a drag-and-drop interface. Windmill supports both cloud hosting and self-hosting on your own servers.

There are free and paid versions. The free version includes unlimited script creation and basic features, while paid plans offer more executions, advanced support, and enterprise features like audit logs.

Prefect

Prefect is a Python-based workflow management system that turns regular functions into production-ready data pipelines. You write your code in normal Python, add a few simple markers (called decorators), and Prefect handles the scheduling, monitoring, and error recovery automatically.

The tool works in two ways: you can run it on your own servers (open-source version) or use their hosted cloud service. Both options give you a clean dashboard to see what's running, what failed, and where problems occurred. Prefect automatically retries failed tasks, caches results to save time, and sends alerts when issues arise.

What makes Prefect special is its flexibility. It works with your existing code without forcing you to restructure everything, making it easier to adopt than many alternatives.

Features of Windmill and Prefect

Windmill

Multi-language script support (Python, TypeScript, Go, Bash, SQL)
Auto-generated user interfaces from code
Visual workflow editor with drag-and-drop
Custom app builder with 60+ components
Schedule scripts or trigger via webhooks
Git integration for version control
Over 100 pre-built integrations
Self-hosted or cloud deployment options
Enterprise-grade security and permissions
Real-time execution monitoring and logs

Prefect

Python-based workflow automation without special languages
Automatic task retries and error handling
Real-time dashboard for monitoring and debugging
Flexible scheduling with cron expressions and event triggers
Open-source with cloud-hosted option available
Integration with AWS, Google Cloud, Azure, and more
Version control and deployment management
Team collaboration with workspaces and permissions
API access for custom integrations
Active community support

Use Cases of Windmill and Prefect

Windmill

Workflow Automation Job Scheduling Workflow Deployment

Prefect

Workflow Automation Data Pipeline Building Job Scheduling Workflow Deployment

Pricing of Windmill and Prefect

Windmill

Windmill offers flexible pricing for both cloud and self-hosted deployments.

Cloud Pricing includes several tiers. The Free plan gives you 1,000 executions monthly with unlimited scripts, flows, and apps. Perfect for testing and small projects. The Team plan starts at $10 per month per developer and includes 10,000 executions per seat, 7-day audit logs, and priority Discord support. You can add operators at $5 monthly for non-developer team members. Enterprise plans begin at $840 monthly with unlimited audit logs, dedicated infrastructure, and 24/7 support with a 3-hour response time.

Self-Hosted Pricing is completely free for the open-source version with unlimited executions. The Enterprise self-hosted edition starts at $120 monthly and includes advanced features like SAML support, distributed caching, and commercial licensing. Annual plans offer a 16% discount on all paid tiers.

Prefect

Prefect offers flexible pricing to suit teams of all sizes. The Hobby plan is completely free and includes 2 users, up to 5 deployed workflows, and 500 minutes of serverless computing each month. This plan works well for personal projects and learning.

The Starter plan costs $100 per month with 3 users and 20 deployed workflows, plus 75 hours of serverless computing. You can also bring your own infrastructure to run workflows.

For growing teams, the Team plan is $400 monthly with 4 users included (add more for $100 each, up to 8 total). It includes 100 deployed workflows and 225 hours of serverless computing, plus service accounts and audit logs.

Pro and Enterprise plans require custom pricing and offer advanced features like single sign-on, multiple workspaces, role-based access control, and dedicated support with service level agreements.