Top pick · highest health
Apache Airflow
99 GOODPlatform to programmatically author, schedule, and monitor workflows.
★ 47k · ⟳ today · 3.3.1 · Apache-2.0
We track 6 open-source Zapier alternatives, of which 5 currently score 70 or above on Repoly's GitHub health scale and 4 ship a Docker image. Apache Airflow leads on health at 99/100 with 1744 commits in the last 90 days; across all 6 projects you are choosing between AGPL-3.0, Apache-2.0, Commons-Clause and 1 other licences.
Showing 6 of 6 tools
Top pick · highest health
Platform to programmatically author, schedule, and monitor workflows.
★ 47k · ⟳ today · 3.3.1 · Apache-2.0
No-code business automation tool like Zapier or Tray. For example, you can send a Slack notification for each new Trello card.
★ 24k · ⟳ today · 0.91.0 · MIT
Browser-based flow editor that helps you wiring hardware devices, APIs and online services to create IoT solutions.
★ 24k · ⟳ 5 days ago · 5.0.7 · Apache-2.0
Free node based Workflow Automation Tool. Easily automate tasks across different services.
★ 204k · ⟳ today · [email protected] · Apache-2.0
Build agents that monitor and act on your behalf.
★ 50k · ⟳ today · v2026.09.09 · MIT
Business automation tool that lets you connect different services like Twitter, Slack, and more to automate your business processes (alternative to Zapier).
★ 14k · ⟳ 7 months ago · v0.15.0 · AGPL-3.0
Apache Airflow scores highest at 99/100, with 1744 commits in the last 90 days, 47k GitHub stars and its latest release (3.3.1) published 1 months ago. n8n has the most raw commit activity at 2836 commits in 90 days.
4 of 6 are permissively licensed (MIT, Apache, BSD or similar): Apache Airflow (Apache-2.0), Activepieces (MIT), Node RED (Apache-2.0), Huginn (MIT). 1 use copyleft licences such as GPL or AGPL, which require you to publish changes if you distribute a modified version.
4 of 6 publish a Docker image or Compose file: Apache Airflow, Activepieces, Node RED, Automatisch. Docker support contributes 10 of the 100 available health points, because it is the clearest signal that self-hosting is a supported path rather than an afterthought.