Open Source Windmill Alternatives

A workflow automation platform for technical teams that want AI agents and business processes in one place. You build in a visual editor, then drop into code whenever a step needs it. Every step is open to inspect, so the workflow itself serves as the documentation.

It suits developers, IT, security and ops teams who need automations other people can read, run and trust.

• 500+ native integrations: connect any API through HTTP, and any agent or coding assistant through MCP.
• Agent visibility: watch agents work live or open any past run inside the same workflow.
• Rules around AI: structured inputs and outputs, human-in-the-loop approvals, guardrails and evaluations.
• Easy recovery: spot an error at a glance and re-run only the step that broke. Replay past runs or mock data to skip waiting on external systems.
• Change tracking: version history shows who changed what, and when.
• Self-hosting: deploy on-prem or with Docker to keep data in your own environment, or use the hosted version. The source code is on GitHub.

For larger organizations, it adds SSO SAML, LDAP, RBAC permissions, encrypted secret stores, audit logs, log streaming to your SIEM, and Git-based version control with isolated environments and workflow diffs.

Examples from its users include onboarding new hires across Slack, Jira and Notion, triaging alerts with an AI agent, investigating security threats across several tools, and qualifying inbound leads. Huel reports saving 1,000 hours, and Vodafone uses it for security operations.

ActivePieces is a powerful, open-source integration platform that empowers users to automate their workflows without writing a single line of code. This versatile tool bridges the gap between various applications and services, enabling seamless connectivity and task automation.

Key benefits of ActivePieces include:

• No-Code Simplicity: Build complex workflows using an intuitive drag-and-drop interface, making automation accessible to users of all technical levels.
• Extensive App Integrations: Connect with popular services like Slack, Google Workspace, Trello, and many more to streamline your daily operations.
• Customizable Triggers: Set up automated actions based on specific events or schedules, ensuring your workflows respond dynamically to your needs.
• Open-Source Flexibility: Benefit from community-driven development, transparency, and the ability to self-host for complete control over your data.
• Time and Resource Savings: Eliminate repetitive tasks and reduce human error, allowing your team to focus on high-value activities.
• Scalable Solutions: Whether you're a small business or a large enterprise, ActivePieces adapts to your growing automation needs.

With ActivePieces, you can create powerful automations that sync data between apps, send notifications, update records, and much more. Its user-friendly interface and robust capabilities make it an ideal choice for businesses looking to optimize their processes and boost overall productivity.

Automatisch is a robust, open-source integration platform that revolutionizes the way you connect and automate your digital tools. By providing a self-hosted solution, it puts you in control of your data and workflows, ensuring maximum privacy and customization.

Key benefits of Automatisch include:

• Seamless Integration: Connect hundreds of apps and services effortlessly, creating powerful automations that streamline your processes.
• Data Sovereignty: Host Automatisch on your own infrastructure, maintaining full control over your sensitive information and complying with data regulations.
• Extensibility: Leverage the open-source nature to add custom integrations and tailor the platform to your specific needs.
• User-Friendly Interface: Design complex workflows with an intuitive, drag-and-drop interface, making automation accessible to both technical and non-technical users.
• Cost-Effective: Eliminate subscription fees for multiple integration tools by using a single, self-hosted solution.
• Community-Driven: Benefit from continuous improvements and updates driven by a passionate community of developers and users.

Whether you're a small business owner, a developer, or an enterprise IT manager, Automatisch provides the flexibility and power to create efficient, automated workflows that save time and reduce errors across your organization.