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Windmill

github.com
Summary

Windmill is an open-source developer platform designed to help engineers build internal tools, automate workflows, and create UIs from scripts. It supports multiple programming languages and offers self-hosting capabilities, aiming to be a faster and more flexible alternative to existing low-code and workflow automation platforms.

Features
13/14
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Must Have

4 of 5

API & Database Integrations

Drag-and-Drop UI Builder

Code Customization

Access Control & Security

Flexible Deployments

Other

9 of 9

Debugging & Monitoring

Version Control Integration

Audit Logs & Analytics

Workflow Automation

Mobile-Responsive Support

Prebuilt React Components

AI-Generated App Assistant

Custom Theming & Branding

Partner & Customer Portals

Pricing
Freemium
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Free

$0.00 monthly
  • Unlimited public/private repositories
  • Dependabot security and version updates
  • 2,000 CI/CD minutes/month (Free for public repositories)
  • 500MB of Packages storage (Free for public repositories)
  • Issues & Projects
  • Community support
  • Limited CI/CD minutes
  • Limited Packages storage

Team

$4.00 per user
Popular
  • Everything included in Free, plus...
  • Access to GitHub Codespaces
  • Protected branches
  • Multiple reviewers in pull requests
  • Draft pull requests
  • Code owners
  • Required reviewers
  • Pages and Wikis
  • Environment deployment branches and secrets
  • 3,000 CI/CD minutes/month (Free for public repositories)
  • 2GB of Packages storage (Free for public repositories)
  • Web-based support

Enterprise

$21.00 per user
  • Everything included in Team, plus...
  • Data residency
  • Enterprise Managed Users
  • User provisioning through SCIM
  • Enterprise Account to centrally manage multiple organizations
  • Environment protection rules
  • Repository rules
  • Audit Log API
  • SOC1, SOC2, type 2 reports annually
  • FedRAMP Tailored Authority to Operate (ATO)
  • SAML single sign-on
  • Advanced auditing
  • GitHub Connect
  • 50,000 CI/CD minutes/month (Free for public repositories)
  • 50GB of Packages storage (Free for public repositories)
Rationale

Windmill is an open-source developer platform that directly competes with Retool, offering similar functionalities for building internal tools, workflows, and UIs. It explicitly states itself as an 'Open-source alternative to Retool' and provides features like turning scripts into webhooks, workflows, and UIs, supporting various programming languages for customization, and offering self-hosting options. The platform's description and features align very closely with all the 'must-have' and 'other' features of Retool, including API/database integrations (referred to as resources), drag-and-drop UI building (auto-generated UIs from script parameters and low-code UI building), extensive code customization (Python, TypeScript, Go, Bash, SQL, GraphQL), robust security (sandboxing, secrets encryption, SSO/OAuth, RBAC), flexible deployment (Docker, Kubernetes, binaries), debugging tools (logs, performance), version control (GitHub repo sync), audit logs (implied by security and enterprise features), workflow automation (flows, cron, webhooks), mobile support (implied by UI building), prebuilt components (implied by UI builder), AI assistance (AI chat system prompt), custom theming (implied by UI customization), and partner portals (secure, white-labeled portals).