10 Best n8n Alternatives Compared

The open-source alternatives worth knowing

If self-hosting is the point, these are the tools people actually compare n8n against. Licences matter here as much as features, because they decide what you are allowed to build on top.

Activepieces is the closest like-for-like: a visual no-code flow builder with a familiar node canvas. Its Community Edition is MIT licensed, which is more permissive than n8n's Sustainable Use License, with enterprise features kept in a separately licensed directory. If the n8n licence restriction on reselling is a problem for what you are building, this is the first alternative to look at.

Windmill comes at the problem from the other direction. Rather than a canvas you drop code into, it turns scripts in TypeScript, Python, Go or Bash into workflows and internal interfaces. The core is AGPLv3. For teams who would rather write functions than wire nodes, it fits better than n8n does, and the free self-hosted tier is generous within limits on workspaces, users and run retention.

Node-RED is the elder of the category, Apache-2.0 licensed and run under the OpenJS Foundation. It is flow-based event wiring originally built for hardware and IoT, and it is still the natural choice there. There is no vendor cloud at all, so self-hosting is the only mode.

Kestra is Apache-2.0 and declarative: workflows are defined in YAML rather than drawn. It targets data, AI and infrastructure orchestration rather than business automation, so it suits a pipeline that lives in version control and is reviewed like code.

Temporal is MIT licensed and belongs in a different category despite often appearing on these lists. It is a durable execution platform for workflows defined in code, not a visual builder, and it is the right answer when you need guaranteed completion of long-running processes rather than connecting SaaS tools.

Sim is newer and Apache-2.0, a visual builder aimed specifically at agent and model-driven workflows. Worth a look if that is the bulk of what you are building.

Choosing between them

Three questions narrow this quickly.

Who writes the workflows? If non-engineers build and maintain them, you want a visual canvas: n8n, Activepieces, Make or Zapier. If engineers own them, Windmill, Kestra or Temporal give you version control, code review and testing, which a canvas cannot match.

What does the licence need to permit? For internal business use, n8n's Sustainable Use License is unrestrictive and the distinction is academic. If you intend to offer the thing commercially to other people, the MIT and Apache-2.0 options remove a conversation you would otherwise have to have with a vendor's legal team.

What breaks if it stops? Hosted tools have support contracts. Self-hosted open source has you, a community forum and whatever runbook you wrote. That is a fair trade at low stakes and a serious one if a stalled workflow means missed orders.

One caveat worth stating: project health on these changes faster than articles do. Popularity figures quoted anywhere, here included, are a snapshot rather than a guarantee of active maintenance. Check recent commit activity and release dates yourself before committing a business process to any of them.