Introduction

Windmill is an open-source, blazing fast and scalable alternative to Retool, Airplane, Superblocks, n8n, Airflow, Temporal to build all your internal tools (endpoints, workflows, UIs) through the combination of code (in Typescript, Python, Go & Bash, or any docker image) and low code builders. It embeds all-in-one:

an execution runtime to execute functions at scale with low-latency and no overhead on a fleet of workers
an orchestrator to compose functions into powerful flows at low-latency built with a low-code builder (or yaml if that's your thing)
an app builder to build application and data-intensive dashboards built with low-code or JS frameworks such a React.

Windmill can be used solely from its UI through its webIDE, and low-code builders but it is also possible to keep using your editor and deploy from a git repo using a CLI.

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Note of Intent

Windmill bridges the gap between no-code/low-code services and traditional programming.

Quick Overview of Windmill

Windmill is a feature-rich platform that allows you to build endpoints, cron jobs, workflows & UIs. Each of these features can be used standalone.

However the 3 core layers of Windmill, namely Scripts, Flows and Apps are complementary. Scripts are the smallest "unit" of abstraction and workflows and UIs rely on them.

Quickstarts

Scripts

Scripts are the basic building blocks that can be written in Typescript, Python, Go, Bash or launch docker containers.

Flows

Flows are state machines represented as DAGs that compose steps together to build workflows and ETLs.

Apps

Apps are customized, user-friendly interfaces built using a drag-and-drop editor.