n8n

n8n is an open-source workflow automation tool that lets technical teams connect apps, APIs, and internal systems through a visual, node-based editor, offering the flexibility of code with the speed of a no-code builder. Each workflow is built by dragging and connecting nodes that represent triggers, actions, and logic, such as "when a new row is added to this spreadsheet, call this API, then post a message to Slack," but unlike many automation tools, n8n also lets users drop into raw JavaScript or Python within any node when built-in integrations aren't enough, which avoids the ceiling that pure no-code tools eventually hit. Because it's open-source and self-hostable, engineering teams with data residency requirements or a preference for owning their own infrastructure can run n8n on their own servers rather than routing sensitive data through a third-party SaaS, while a hosted cloud version exists for teams that don't want to manage that infrastructure themselves. n8n includes hundreds of pre-built integrations with common SaaS tools, databases, and AI models, and its workflows can be version-controlled and deployed like code, which appeals to engineering teams that want automation to fit into existing development practices rather than live as an disconnected internal tool. It's popular with startups automating internal ops, customer workflows, and AI-agent pipelines that need more control than typical drag-and-drop automation platforms allow.