n8n is an open-source workflow automation platform connecting 400+ apps and AI services including OpenAI, Hugging Face, and LangChain. n8n offers execution-based pricing with unlimited workflows, users, and steps for building low-code or custom automation workflows.

Key Features:

• 400+ Integrations - Apps, AI services, databases, APIs


• Unlimited Workflows - No limits on active workflows (2025 update)


• Execution-Based Pricing - Pay per workflow run, not per step


• Self-Hosting Option - Free unlimited workflows when self-hosted


• Visual Workflow Builder - Drag-and-drop interface for automation


• AI Integrations - OpenAI, Hugging Face, LangChain, AI agents


• Custom Code - JavaScript and Python for advanced logic


• Git Version Control - DevOps best practices (Business plan)


• SSO & LDAP - Enterprise-grade security

Pricing:

Self-Hosted: Free (unlimited workflows)

Starter: $20/month (cloud-hosted)

Pro: $50/month

Business: Custom pricing (advanced collaboration, environments)

Enterprise: Custom (unlimited executions)

Platforms:

Web App, Self-Hosted, Docker

Alternatives:

Zapier, Make (Integromat), Activepieces, Automatisch, Temporal

Note: 45,000+ community members. No per-user or per-step fees. Complete data control with self-hosting. 14-day free trial for Business plan.