Many owners search for an open-source alternative to Zapier hoping for a free tool with no per-task bill. That can work, but the phrase hides two traps. First, "open source" is used loosely, and some popular tools use a different licence. Second, free software does not mean free to run: someone has to host, update and secure it. This guide explains the licence differences using each project's own documentation, compares three well-known tools, and gives you a short decision process.
Published source code lets you inspect and host a tool yourself, but it does not remove the work of running it. Photo: Mohammad Rahmani on Unsplash
The short answer
- Activepieces states in its repository that its Community Edition is released as open source under the MIT licence, with enterprise features under a commercial licence.
- Node-RED describes itself as a flow-based programming tool, now part of the OpenJS Foundation, with a browser-based editor and, per its own site, over 5000 community nodes.
- n8n publishes its source under the Sustainable Use License. Its documentation says it does not call itself open source, because the Open Source Initiative says open source licences cannot limit use. n8n calls the model "fair-code".
For a small business using the tool for its own internal processes, all three can be practical. The licence questions start to matter if you plan to resell the tool, host it for clients, or embed it in a product.
What "open source" actually means
The Open Source Initiative publishes a ten-point definition. Two points matter most here. The licence must allow free redistribution, and it must not restrict anyone from using the program in a specific field of endeavour. The definition gives the example that a licence may not stop the software from being used in a business.
That is why n8n draws a line. Its documentation says its licence lets you use, modify and redistribute the software free of charge, with three limits: use is for your own internal business purposes or non-commercial use, distribution to others must be free and non-commercial, and licence notices must stay in place. Because those limits restrict some uses, n8n says it is "fair-code", not open source. It also says that in practice most users get many of the same benefits.
You do not need to settle the naming debate. You do need to know what you may do, and the vendors' own pages say so plainly.
n8n: what the free edition includes
n8n's documentation describes self-hosted editions in three groups. The Community edition is free and runs without a licence key. A Registered Community edition is still free, and unlocks folders, debugging in the editor and custom execution data when you register an email. Business and Enterprise plans are paid and unlock more.
The documentation says the Community edition includes almost the complete feature set, and lists what it leaves out: custom variables, environments, external secrets, external storage for binary data, log streaming, multi-main mode, projects, single sign-on, sharing workflows and credentials, and Git version control. For a one-person or small team setup, many of these will not matter. For a growing team that needs shared credentials, approvals or audit trails, they might.
On licence use, the documentation lists what is allowed for internal business: syncing your own company's data, building integrations, providing consulting, and setting it up or maintaining it on an internal server. What is not allowed includes white-labelling n8n for customers and hosting it while charging for access. If you build workflows for clients, read the licence FAQ carefully, and email the vendor if unsure.
Activepieces and Node-RED in brief
Activepieces describes itself as an open source replacement for Zapier. Its repository says it is designed to be extensible through a TypeScript "pieces" framework, lists loops, branches, automatic retries and versioned flows among builder features, and says the Community Edition is MIT-licensed. It also describes human-in-the-loop pieces that can delay a flow or ask for approval, which is useful for anything that sends or pays.
Node-RED is older and more technical. Its site says it began in 2013 at IBM, was open-sourced that year, and is now an OpenJS Foundation project. It uses a browser editor where you wire together nodes, with JavaScript functions inside, and runs on Node.js, including on low-cost hardware. It describes itself as low-code programming for event-driven applications, so it suits teams comfortable with some code.
These descriptions come from the projects themselves. We have not benchmarked the tools, so test any of them on your own workflow before committing.
Self-hosting: the part the licence does not cover
Choosing a tool whose code you can run yourself shifts work onto you. n8n's hosting documentation shows what that looks like. You can install with Docker, Docker Compose or on a cloud provider. It recommends Docker Compose for production deployments with databases and additional services, and says installing through npm is deprecated from n8n 3.0. The same section lists configuring databases, environment variables, users and security settings, and keeping the instance running by monitoring, logging and updating it.
In plain terms, a self-hosted automation server is a small production system. It holds the keys to your email, CRM, accounting and storage, so it needs the same care as any server:
- Updates. Someone has to apply them on a schedule and read the release notes.
- Backups. Workflows and credentials need a tested restore.
- Access control. Limit who can sign in, and keep the server off the open internet where possible.
- Credentials. Give each connection the narrowest permissions it needs.
- Monitoring. A silent failure is worse than a loud one.
Our website maintenance guide covers the habits that apply to any small server, and our note on rotating secrets after a breach shows why stored credentials deserve care. If a cloud tool charges per task but removes all of this, that fee may be cheaper than your time. Our comparison of Zapier, Make and n8n explains how the paid options charge.
How to choose
- Write down what the workflow does and how often it runs. A handful of simple automations rarely justify a server.
- Decide who will maintain it. If the answer is "nobody in particular", choose a hosted service or hire help.
- Check the licence against your use. Internal use is usually simple; reselling or hosting for clients is not.
- List the features you need. Shared credentials, SSO, environments or audit logs may sit in a paid plan.
- Pilot on one low-risk workflow and compare the real effort with a hosted alternative.
If you want this built and maintained for you, our AI automation service covers workflow design, hosting choices and monitoring.
Checklist before you self-host
- Name one person responsible for updates, backups and access.
- Confirm that your planned use is allowed by the tool's licence.
- Write down the paid features you may need within a year, and check the current pricing page.
- Choose a production-grade install method from the vendor's documentation, not a quick test setup.
- Put the server behind a login and restrict who can reach it.
- Set up automatic backups and test restoring one.
- Give each connected account the narrowest permissions it needs.
- Require a person to approve any workflow step that sends, posts or pays.
- Review the setup after one month and decide whether hosted would have been cheaper.
Common mistakes to avoid
Treating "free" as "no cost". The software fee may be zero while hosting and maintenance time are not.
Assuming every tool is open source. Read the licence page. The vendor's own wording is the answer.
Forgetting the licence when selling services. Hosting a tool and charging for access is a different matter from using it internally.
Skipping backups and updates. An unpatched automation server holding your credentials is a risk.
Starting with the most critical workflow. Pilot on something where a failure is cheap.
Key takeaways
- Activepieces says its Community Edition is MIT-licensed; Node-RED is an OpenJS Foundation project; n8n says it is fair-code, not open source.
- The Open Source Initiative's definition does not allow limits on use, which is the reason n8n uses a different label.
- The free n8n edition is broad but leaves out features such as SSO, projects, sharing, environments and Git version control.
- Self-hosting shifts updates, backups and security to you.
- Compare the real cost of your time with a hosted tool's fee before deciding.
Want a second opinion on tools, hosting or a first workflow? See our AI automation service or talk to our team.
Sources
- n8n Docs: Sustainable Use License
- n8n Docs: Compare editions
- n8n Docs: Host n8n
- Activepieces on GitHub
- Node-RED: About
- Open Source Initiative: The Open Source Definition
Last reviewed 30 October 2026. This article is general information, not legal advice or a product endorsement. Licences, plans and features change, so confirm details in each project's current documentation.
