AltFreeStack

2 Open Source alternatives to Zapier in 2026

We compare 2 self-hostable tools you can deploy on your own server in minutes, with license, tech stack and a ready-to-copy docker-compose.

Which one fits you best?

Quick comparison

Sorted by featured first, then GitHub stars as a tiebreaker — the same rule we use across the whole site.

ToolLicenseMinimum RAMDockerGitHub
n8n
Lightest optionMost popular on GitHub1-Click Deploy
Sustainable Use License (Fair-code)~1GB✅★ ~55,000
ActivepiecesMIT~2GB✅★ ~14,000

Detailed profile of each alternative

n8n

Alternative to Zapier, Make

Dev Tools

Workflow automation, an alternative to Zapier.

Sustainable Use License (Fair-code) ~55kFair-code🟡 Standard · ~1GB
Docker Ready1-Click Deploy
Activepieces

Alternative to Zapier, Make

Dev Tools

Workflow automation with 200+ integrations, an alternative to Zapier.

MIT ~14kOpen-Core🔴 Full · ~2GB
Docker ReadyPermissive License

How do I replace Zapier?

A practical guide with the real use case and limitation of each of the 2 alternatives, to pick the one that fits best.

See replacement guide →

How much does Zapier cost, and how much can you save?

Zapier costs $19.99/mo. Self-hosting the alternative, you only pay for the server — usually a few dollars a month.

Calculate your exact savings in the SaaS Audit →

Already know which one you want?

Add n8n to the Stack Builder and generate a ready-to-deploy docker-compose.yml, alone or alongside the rest of your stack.

Build my stack

Frequently asked questions

Do I need Docker to self-host a Zapier alternative?

Yes, for all 2: each one has a ready-to-copy docker-compose.yml. You just need Docker installed on your server.

How much RAM do I need at minimum?

The lightest option on this list is n8n, which runs on as little as 1GB of RAM — enough for a cheap VPS.

Are they all 100% free, or are there paid features like on Zapier?

0 out of 2 are 100% FOSS. The rest are Open-Core: the core is free and self-hostable, but some advanced feature may stay paid — we call it out on each tool's page.