n8n
Automation No key
AuthenticationNo key
Rate limitSelf-hosted: unlimited workflows and executions. Limited only by your hardware
Documentation: docs.n8n.io ยท Checked Sep 13, 2026
About
n8n is a visual workflow-automation tool you can run on your own computer or server for free. No limits on how many automations you run, because you own the machine. It connects 1,500+ apps (Gmail, Slack, Notion, Stripe, and more), lets you drop in JavaScript or Python when you need custom logic, and has a huge library of ready-made workflow templates. Fair-code license, very active community.
Details
No key needed. You can call it right away.
Auth: No key
Rate limit: Self-hosted: unlimited workflows and executions. Limited only by your hardware
Verified: 2026-09-13
Best for: business personal developer
Setup
- Install Node.js, then run: npx n8n (or use the Docker command from their docs)
- Open http://localhost:5678 in your browser to see the workflow editor
- Click to create a workflow and add a trigger (e.g. a webhook or schedule)
- Add app nodes. Connect Gmail, Slack, or anything else by signing in once per app
- Hit Execute to test, then flip the workflow Active and it runs on its own
Example
npx n8n (starts the editor at http://localhost:5678)Use cases
- Auto-save email attachments to Drive and log them in a spreadsheet
- Post a Slack message whenever a new row appears in your database
- Build multi-step business workflows (lead โ CRM โ email โ task) for free