n8n (pronounced "n-eight-n") is an open-source workflow automation tool. At its core, it lets you connect different apps and services together so data and actions flow between them automatically, without you doing it by hand.
A "workflow" in n8n is built from nodes — each node represents one action, like "get a new row from a spreadsheet" or "send a Slack message." You connect nodes together to build a sequence: this happens, then that happens, then that. n8n supports 800+ pre-built node types for common apps, plus generic HTTP nodes for connecting to literally anything with an API.
What sets n8n apart from many alternatives is that it's self-hostable — you can run it on your own server instead of a vendor's cloud — and open-source, so you're never locked into a platform you can't inspect or move away from. That's exactly why Gydmation AI is built on it: the workflows it generates are real, portable n8n workflows, not something proprietary.