Open alternatives4
Open-source apps that replace Zapier and Make

Huginn is a self-hosted system for building small automated tasks that watch websites, feeds and services and act when something changes. It is for technical users who want to run their own automation server instead of using a hosted service.

Activepieces is a tool that connects apps and automates tasks between them using a visual, no-code builder. It is aimed at both technical developers and non-technical users who want to set up workflows.

Node-RED is a visual tool for connecting devices, web services and other software by wiring together blocks in a browser. It is aimed at people who want to automate tasks or build event-driven applications without writing much code.

Automatisch is a business automation tool that connects different online services so routine tasks can run automatically. It is for businesses that want to automate workflows and keep their data on their own servers.
What's missing
What people still miss here, and wish existed. Upvote what matters to you.
Before you build
Planning something for automation? See what exists first, so you can reuse parts or explain what's different. Paste this into any AI assistant:
Fix the list itself
A project or closed app missing from this list, or a mistake on it? These open a short form on GitHub, and a mod reviews it. To say what a project can't do, use What's missing.
About this page
Replaces fully means it does the main job of these apps; Replaces partly means it covers some of it.
Licenses: every project here uses an open-source license (what each one means). Open core means some parts are paid or under another license.
GitHub stars are shown for reference. They measure popularity, not whether it replaces anything.
Verified means r/TrueOpenSource mods checked it: open-source license, maintained, and it really does the job.
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