Open-source alternatives to Zapier
The most popular self-hosted, open-source alternatives to Zapier (workflow automation) are n8n (207,929 GitHub stars), Apache Airflow (47,209 GitHub stars) and Kestra (29,837 GitHub stars). SelfHostHub lists 12 options below, taken from its Automation category; 9 support Docker and all of them can run on your own server.
Comparison of self-hosted Zapier alternatives
| Project | GitHub stars | Licence | Language / platform | What it does |
|---|---|---|---|---|
| n8n | 207,929 | Apache-2.0, Commons-Clause | Nodejs | Free node based Workflow Automation Tool. Easily automate tasks across different services. |
| Apache Airflow | 47,209 | Apache-2.0 | Python, Docker | Platform to programmatically author, schedule, and monitor workflows. |
| Kestra | 29,837 | Apache-2.0 | Docker | Event-driven, language-agnostic platform to create, schedule, and monitor workflows. In code. Coordinate data pipelines and tasks such as ETL and ELT. |
| Activepieces | 25,098 | MIT | Docker | No-code business automation tool like Zapier or Tray. For example, you can send a Slack notification for each new Trello card. |
| Automatisch | 13,999 | AGPL-3.0 | Docker | Business automation tool that lets you connect different services like Twitter, Slack, and more to automate your business processes (alternative to Zapier). |
| StackStorm | 6,549 | Apache-2.0 | Python | StackStorm (aka _IFTTT for Ops_) is event-driven automation for auto-remediation, security responses, troubleshooting, deployments, and more. Includes rules engine, workflow, 160 integration packs with 6000+ actions and ChatOps. |
| Dittofeed | 3,010 | MIT | Docker | Omni-channel customer engagement and messaging automation platform (alternative to Braze, Customer.io, Iterable). |
| Matchering | 2,662 | GPL-3.0 | Docker | Automated music mastering (alternative to LANDR, eMastered and MajorDecibel). |
| µTask | 1,410 | BSD-3-Clause | Go, Docker | Automation engine that models and executes business processes declared in yaml. |
| Kibitzr | 718 | MIT | Python | Lightweight personal web assistant with powerful integrations. |
| flowctl | 341 | Apache-2.0 | Go, Docker | Self-service workflow execution platform with approvals, remote execution and scheduling. |
| Mylar3 | 126 | GPL-3.0 | Python, Docker | Automated Comic Book (cbr/cbz) downloader program for use with NZB and torrents. |
Star counts and licences come from the awesome-selfhosted dataset and may lag GitHub slightly.
Browse the full categories
Frequently asked questions
What is the best open-source alternative to Zapier?
By GitHub stars, n8n is the most popular self-hosted alternative to Zapier listed here, followed by Apache Airflow and Kestra. The best fit depends on the features and stack you need.
Is there a free self-hosted alternative to Zapier?
Yes. All 12 projects on this page are open source and can be self-hosted at no licence cost; you pay only for your own server.
Which licences do these Zapier alternatives use?
The most common licences among them are Apache-2.0 (5), MIT (3) and GPL-3.0 (2).
Can I run a Zapier alternative with Docker?
9 of the 12 alternatives list Docker as a supported platform.