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Zapier does 4 jobs: app-to-app workflows, scheduled automations, AI agent workflows, webhooks. Most projects replace one or two of them, so pick the job you actually need.
Open-source alternatives to Zapier that run locally, allow commercial use and need no paid API include Huginn (app-to-app workflows, scheduled automations and webhooks; MIT; runs on CPU). Activepieces and n8n cover all 4 Zapier jobs.
Self-hostable no-code automation builder with 280+ TypeScript integrations ("pieces") that are also exposed as MCP servers.
Self-hosted Ruby on Rails system of agents that watch the web, feeds, mailboxes and webhooks and act on events, like IFTTT or Zapier.
Fair-code workflow automation and AI agent platform with a visual canvas, custom code and 1500+ integrations; self-hostable.
Self-hostable developer platform that turns Python, TypeScript, Go, Bash and SQL scripts into workflows, scheduled jobs, webhooks and UIs.
No project meets all of your requirements. The list below shows what you'd need to relax.
We hid them because something is missing, unknown or conflicting. Here's what.
Yes. n8n, Activepieces, Huginn and Windmill are free to download and run on your own computer without paid API keys. n8n and Activepieces cover every job we list for Zapier; the others cover only part of it, so check which job you need.
Yes, with Huginn (MIT), Windmill (AGPL-3.0) and n8n (Custom licence). Check the hardware notes and licence conditions on each page before you start.
Yes, with Huginn (MIT), Windmill (AGPL-3.0) and n8n (Custom licence). Check the hardware notes and licence conditions on each page before you start.
Confirmed: Activepieces and Huginn. With conditions: n8n and Windmill. This is not legal advice; read each licence.
Activepieces and n8n cover every job we list for Zapier.