Windmill
Windmill is an open-source platform for building, running, and orchestrating scripts and workflows for internal automations and integrations (workflow automation / Internal Developer Platform (IDP)).
- Script and workflow orchestration for internal automations (workflow automation).
- Web-based Immutable Deployment Environment (IDE) and versioned workspace for authoring and managing scripts (developer tooling).
- Built-in scheduling, triggers, and background job execution (job orchestration).
- Support for multiple runtimes and programming languages for automation logic (polyglot runtime).
- Role-Based Access Control (RBAC), environment management, and deployments for teams (platform governance and DevOps).
More About Windmill
Windmill addresses the problem of building and operating internal automations, back-office tools, and integrations by providing a unified platform for authoring, running, and orchestrating scripts and workflows (workflow automation / internal tools platform). It is positioned for engineering and platform teams that need to expose reusable automations and internal services to other teams while retaining control over execution, security, and environments.
The core of Windmill is a workspace model that organizes scripts, flows, resources, and environments in a multi-tenant structure (developer workspace management). Users can write scripts in multiple languages supported by the platform and execute them as on-demand jobs, scheduled tasks, or components of larger flows (polyglot job execution). Windmill exposes these units as reusable building blocks that can be wired together into flows with branching, error handling, and data passing (workflow engine).
Windmill provides a web-based IDE for authoring and editing scripts directly within the platform (web IDE / developer tooling). This environment integrates with execution logs, input parameter schemas, and resource bindings, allowing developers to iteratively create and test automations. The platform supports versioning of scripts and flows, enabling rollbacks and controlled promotion between environments (release management).
From an operational perspective, Windmill includes triggers such as schedules, webhooks, and Application Programming Interface (API) calls to start jobs and workflows (event-driven orchestration). It manages execution concurrency, retries, and logging, and exposes run history for observability of automation behavior (operations and observability). Resources such as database connections, Hypertext Transfer Protocol (HTTP) endpoints, and other credentials are defined centrally and referenced by scripts, separating configuration from code (configuration and secret management).
For enterprise use, Windmill includes RBAC, workspace permissions, and environment isolation to segment teams and workloads (access control and multi-tenancy). It can be deployed self-hosted or used as a managed service, integrating into existing infrastructure via standard protocols such as HTTPS and Representational State Transfer (REST) APIs (integration and deployment). The platform also supports building simple UI frontends on top of flows and scripts, enabling non-technical users to trigger defined automations through parameterized forms (internal tooling / self-service).
In an enterprise architecture, Windmill typically sits between line-of-business systems, data stores, and internal APIs as an automation and orchestration layer. It interacts with external services through HTTP, database drivers, and other connectors defined as resources, and exposes automations through APIs, triggers, or internal UIs. Its categorization fits into workflow automation, job orchestration, and IDP tooling, with emphasis on script-centric automation and governance for technical teams.