What is Windmill?

Windmill is an open-source developer platform for building, deploying, and monitoring internal software at scale. The platform embodies core principles: avoid vendor lock-in (open-source and self-hostable – your code, your data, your infrastructure), seamless enterprise integration (connect to PostgreSQL, MySQL, Snowflake, AWS, Azure, GCP, Kafka, SQS, NATS, and 100+ APIs), and enterprise-grade security (granular RBAC, SSO, Secret Management, and Audit Logs). Deploy anywhere – cloud, on-premises, or air-gapped. Windmill is built for regulated industries requiring strict data control.

Key Features

✓Build and deploy internal tools
✓Workflow engine
✓100+ API integrations
✓Database connections (PostgreSQL, MySQL, Snowflake)
✓Cloud platforms (AWS, Azure, GCP)
✓Message queues (Kafka, SQS, NATS)
✓Granular RBAC
✓SSO integration
✓Secret management
✓Audit logs
✓Air-gapped deployment
✓Open-source

🔒 Privacy & Data Protection

Windmill is developed in France (EU) with enterprise-grade security at its core. Self-host on your own infrastructure – your code, your data. Air-gapped deployment supports regulated industries with the strictest security requirements. Granular RBAC, audit logs, and secret management meet compliance needs. For organizations building internal tools that must remain within controlled environments, Windmill provides the security French engineering is known for.

Best For

Engineering teams building internal toolsEnterprises automating workflowsOrganizations in regulated industriesCompanies needing air-gapped deploymentTeams seeking Retool alternativeDevOps automating infrastructure

💰 Pricing

Windmill is open-source and free for self-hosting. Cloud and Enterprise plans provide managed hosting, priority support, and advanced features. Visit windmill.dev for current pricing.

Ready to try Windmill?

Join thousands of users who have switched to this European alternative.

Get Started with Windmill →