Open-source alternatives to n8n

n8n is a fair-code workflow automation platform — its source is visible and it's free to self-host under the Sustainable Use License, but that license restricts commercial redistribution and offering n8n as a competing hosted service, which is different from a permissive open-source license like MIT or Apache 2.0.

The alternatives below differ on two axes: how permissive the license is, and whether the tool targets general business automation, data orchestration, or AI pipelines.

The best open-source alternatives to n8n

1. ActivePieces — best general-purpose replacement

ActivePieces is the closest to n8n in spirit: a visual, no-code automation builder where you connect apps into trigger-action flows, with AI agent capabilities layered on top. The decisive difference is licensing — the Community Edition is MIT, with none of the commercial-use restrictions that push teams away from n8n.

It ships 280+ integrations ("pieces"), most community-contributed, and every piece is also exposed as an MCP tool — so LLM clients like Claude or Cursor can use your integrations directly. Its library is smaller than n8n's 400+, which is the honest cost of switching.

Why pick it over n8n:

• MIT-licensed core — no restrictions on commercial use or redistribution
• 280+ open-source integrations, 60% community-built
• All pieces double as MCP tools for AI agents
• Visual no-code builder with programmatic extensibility in TypeScript
• Self-host via Docker or Helm at no license cost

2. Kestra — best for data and infrastructure orchestration

Kestra targets a different center of gravity: workflows are declarative YAML files that live in Git, get reviewed in pull requests, and deploy through CI/CD — while tasks run in Python, Bash, Node.js, Go, or containers. With 1400+ plugins across cloud providers, databases, and data tools like dbt and Airbyte, it's built for pipelines rather than app-to-app triggers.

Apache-2.0 licensed, with a paid Enterprise Edition for SSO and multi-tenancy. Pick it when "automation" means orchestrating data and infrastructure across teams.

Why pick it over n8n:

• Workflows as version-controlled YAML, reviewable like code
• Apache-2.0 — fully permissive core license
• 1400+ plugins with deep data-engineering coverage
• Event-driven and scheduled triggers on one engine
• Scales to serious pipeline workloads (used at enterprise scale)

3. Flowise AI — best for AI agents and LLM pipelines

Flowise has the most stars of the group but does a different job: it's a visual drag-and-drop builder for AI agents and LLM pipelines — chatbots, RAG over your documents, multi-agent systems — connecting to 100+ LLMs, embedding models, and vector databases.

Choose it when the workflows you actually need are AI workflows; pair it with one of the general-purpose tools above for classic integrations. Apache-2.0 licensed.

Why pick it over n8n:

• Purpose-built for agents and RAG rather than generic automation
• Connects to 100+ LLMs and vector databases out of the box
• Flows deploy as APIs, SDKs, or embeddable chat widgets
• Apache-2.0 licensed with a large community (53k+ stars)

4. Automatisch — best for simple trigger-action automations

Automatisch is deliberately minimal: a Zapier-style interface, around 40 integrations, and the fastest setup of the group. For teams whose automations are "when X happens, do Y" — sync a contact, post to Slack — it removes everything n8n makes you think about.

The Community Edition is AGPL-3.0. It's the wrong pick for branching, multi-step logic, or AI workflows — that's precisely the surface it chose not to build.

Why pick it over n8n:

• Simplest possible self-hosted automation — minutes to first workflow
• No-code interface accessible to non-developers
• AGPL-3.0 Community Edition, free to self-host
• Ideal for GDPR-sensitive teams wanting data on their own servers

5. ByteChef — best built-in code editor

ByteChef pairs a visual workflow builder with an embedded code editor supporting Java, JavaScript, Python, and Ruby — so the custom logic that would be an awkward function node in n8n becomes a first-class part of the flow. It ships 200+ components and flow controls (conditions, loops, parallel branches), under an Apache-2.0 core.

It's a young project (under 1k stars), so weigh its momentum against your production requirements.

Why pick it over n8n:

• Write workflow logic in four languages inside the builder
• Apache-2.0 core license, open-core enterprise features
• API orchestration focus with Git-friendly workflow export
• 200+ built-in components

FAQ

Is there a free, open-source alternative to n8n?

Yes. Flowise AI, Kestra, and ByteChef are all free to self-host under permissive licenses (Apache-2.0), and ActivePieces under MIT — none carry the commercial-use restrictions of n8n's fair-code Sustainable Use License. Automatisch is also free to self-host under AGPL-3.0.

What's the best open-source alternative to n8n?

ActivePieces is the closest general-purpose, permissively-licensed match. Kestra is the better fit for data and infrastructure orchestration, Flowise AI for AI agent and LLM pipeline building, and Automatisch if you want the simplest trigger-action setup.

Which n8n alternatives have a fully permissive license?

ActivePieces (MIT), Kestra (Apache-2.0), and ByteChef (Apache-2.0) all use permissive licenses for their core, without n8n's restrictions on commercial redistribution. Note that ActivePieces and ByteChef follow an open-core model, with some enterprise features under a separate commercial license.

What are the top open-source alternatives to n8n?

Browse all open-source alternatives to n8n above, or explore related tools via alternatives to Zapier and alternatives to Make, or the full Automation category.