Open source

The tool's source code is published under a licence that lets anyone read it, and usually run or modify it on their own servers.
On this pageWhat it is

What it is

Open source means the code that makes the tool work is public. Anyone can read it, and the licence usually lets you run your own copy on your own server. Cal.com, n8n and RudderStack are examples of tools that publish their code. The vendor typically also sells a hosted version, so you can pay for convenience or run it yourself.

Why it matters

It matters when you worry about being locked in, or when data must stay on servers you control, for instance because of privacy rules. It also lets an outside developer inspect or adapt the tool. It matters less when you simply want something that works without maintenance. Self-hosting means someone in your team has to install updates, keep backups and fix outages, which is real work. Open source also does not mean free: the hosted plan and some features can still cost money.

What to check

  • Which licence is used, and does it allow commercial use and self-hosting?
  • Are any features reserved for the paid hosted version?
  • Who in your team would install updates and handle backups if you self-host?
  • Can you export your data in a standard format if you leave?

Tools with Open source

  • n8n logo
    n8n
    From €20/mo yearly
    Connects apps and APIs through a visual node-based workflow editor with code-level flexibility.

    AutomationFree planAffiliate link

    Sign up on n8n

In Automation ranking order; the number is each tool's place. Some of this is collected from public sources and not yet checked by us.

Automation tools without open source

Also in other categories

Tools filed under other categories that have Open source.