Open source alternatives to Zapier
4 free tools that do the job of Zapier, most stars first. All are web apps you can run on your own server.
4 alternatives
Sorted by most stars.-
n8n
Workflow automation with a visual editor that connects hundreds of apps.
Also an alternative to IFTTT
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Activepieces
Workflow automation and AI agents with hundreds of integrations, no code needed.
Web app
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Windmill
Turn scripts into workflows, apps and internal tools, with a built-in job runner.
Also an alternative to Retool
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Automatisch
Connect your apps and automate tasks without code, on a server you control.
Web app
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Ask us to add itAbout these numbers. Stars, dates and licenses come from GitHub through ecosyste.ms, collected on 10 Nov 2026; they can lag GitHub by a few days. A project is listed only if it has 300 or more stars, was updated in the last 12 months and states a license. A listing is not an endorsement, and we have not tested these tools on Antideploy yet. Logos belong to their projects and companies and are shown only to say which is which.