n8n

n8n.io

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Fair-code workflow automation platform — visually connect apps and APIs like Zapier, but self-hostable with no per-task pricing.

Why it is useful

n8n combines a drag-and-drop workflow builder with the ability to drop into actual JavaScript/Python code for custom logic, giving it more flexibility than most no-code automation tools. Self-hosting removes the per-execution costs that make Zapier expensive at scale, and it ships with hundreds of pre-built integration nodes.