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6 self-hosted Windmill alternatives

Windmill is a developer platform and workflow engine that turns scripts into autogenerated UIs, APIs, cron jobs and workflows. It supports multiple languages, low-code composition, integrations, scheduling/triggers, observability, Git sync, and cloud or self‑hosted deployment.

Alternatives to Windmill

#1

Self-hostable workflow automation platform combining a visual builder with JavaScript/Python code steps, 400+ integrations, and AI-assisted automation.

n8n screenshot

202.5k stars60.4k forkslast commit Actively maintained

ToolJet is an open-source low-code platform to build and deploy internal tools, dashboards, and workflows with integrations for databases, APIs, and SaaS apps.

ToolJet screenshot

40.8k stars5.4k forksAGPL-3.0last commit Actively maintained

Build and deploy internal tools, admin panels, and dashboards with a low-code UI builder that connects to databases and APIs and supports JavaScript logic and Git workflows.

Appsmith screenshot

40.8k stars4.7k forksApache-2.0last commit Actively maintained

Windmill is an open-source developer platform to turn scripts into webhooks, cron jobs, workflows, and internal apps with auto-generated and low-code UIs.

Windmill screenshot

17.7k stars1.1k forkslast commit Actively maintained

#5

µTask is a lightweight automation engine for cloud workflows modeled in YAML, backed by PostgreSQL, with extensible Go-based actions.

1.4k stars104 forksBSD-3-Clauselast commit Actively maintained

Single-binary platform that turns Bash/Lua scripts into HTTP endpoints, webhooks, cron jobs and visual pages with built-in auth, OAuth and credential management.

RapidForge screenshot

18 stars0 forksApache-2.0last commit Actively maintained

What replacing Windmill actually involves

Every option on this page is open source and free to run on your own hardware, so you own the data and there is no subscription to cancel. 6 of 6 shipped a commit in the last six months. Licences in this list: AGPL-3.0, Apache-2.0, BSD-3-Clause. In exchange you take on hosting, backups and updates yourself.

Browse everything in Automation & Workflow Builders (Low-code).

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