Use Zapier for simple, low-volume workflows between popular cloud apps when speed matters most. Use n8n when workflows are complex, run at volume or handle sensitive data, because it can be self-hosted and does not charge per step. Write custom code when the workflow is core to your product, needs to scale heavily or has logic that visual tools cannot express cleanly.
Most businesses reach the same point sooner or later: the team is copying data between tools by hand, and someone says “we should automate this”. The next question is how. The three most common answers are Zapier, n8n and custom code, and each is the right choice in different situations.
What is each one, in plain terms?
- Zapier is a hosted, no-code automation service. You connect apps through a visual builder, and it runs everything for you. It has the largest library of ready-made app connections.
- n8n is a visual workflow tool that you can use in the cloud or run on your own server. It is more technical than Zapier, handles complex logic well and lets you drop into code when you need to.
- Custom code means writing the integration yourself, typically as a small service or scheduled job, using the APIs of the tools involved.
When is Zapier the right choice?
Zapier shines when you need something working today, the workflow is simple and the people building it are not developers. Connecting a form to a spreadsheet and a Slack message, or adding new customers to a mailing list, takes minutes.
The trade-offs appear as you grow. Pricing is based on tasks, so costs rise with volume, and a busy workflow can become surprisingly expensive. Complex branching, loops and error handling are possible but awkward, and your data passes through a third-party service, which matters for some industries.
When is n8n the better fit?
n8n suits workflows that are more involved: several systems, conditions and loops, data transformation, retries and error branches. Because it can be self-hosted, you control where the data lives, which helps with privacy and compliance, and running it on your own server means you are not paying for every step a workflow takes.
The cost is responsibility. Someone has to host it, update it, back it up and monitor it, and building in n8n assumes a bit more technical comfort than Zapier. Its licence also has conditions for commercial use, so check that your use case fits before building a business on top of it.
When should you write custom code?
Custom code makes sense when the automation is part of your product rather than glue between tools, when it handles very high volumes, or when the logic is complex enough that a visual flow becomes harder to read than code. It gives you full control over performance, testing, version control and deployment.
It is also the most expensive option to build and needs developers to maintain it. For a simple workflow between two SaaS tools, it is usually overkill.
How do they compare?
- Time to first workflow: Zapier is fastest, then n8n, then custom code.
- Cost at high volume: custom code and self-hosted n8n are usually cheapest; per-task pricing makes Zapier the most expensive.
- Complex logic and error handling: custom code is strongest, n8n is good, Zapier is limited.
- Data control: custom code and self-hosted n8n keep data on your infrastructure; Zapier processes it on theirs.
- Who can maintain it: anyone for Zapier, a technical team member for n8n, developers for custom code.
Can you combine them?
Yes, and many businesses should. A common pattern is to prototype quickly in Zapier or n8n, then move the workflows that become critical or expensive into n8n on your own server or into code. Another is to keep simple notifications in a no-code tool and put the business-critical data flows in something you control.
How do you decide?
- How often will it run? Thousands of runs a day points away from per-task pricing.
- How sensitive is the data? Regulated or personal data points towards self-hosting or code.
- How complex is the logic? Many branches, loops and edge cases point towards n8n or code.
- Who will maintain it? Match the tool to the skills your team actually has.
- How critical is it? If the business stops when it breaks, you want monitoring, tests and an owner, whichever tool you use.
There is no single right answer, but there is usually a clear one for each workflow. Start with what will run reliably for your team, and move to more control as the stakes and volumes grow.
Questions
Is n8n free?
n8n can be self-hosted at no licence cost for many internal business uses, and it also offers paid cloud and enterprise plans. Its licence has conditions for some commercial uses, so check the current terms against how you plan to use it.
Can we move our workflows from Zapier to n8n later?
Yes, but there is no automatic conversion; each workflow is rebuilt in n8n. Moving the high-volume or critical ones first usually gives the biggest savings for the least effort.
Do we need a developer to use n8n?
Not always. Simple workflows can be built visually. A developer helps for self-hosting, complex logic, custom code steps and setting up monitoring and backups properly.