Ditching Zapier for n8n: How I Built a $0 Self-Hosted AI Automation Engine on Docker (Save $720/Year)

Description and use

The author replaced Zapier with a self-hosted n8n Docker deployment, processing 142,680 tasks in 90 days, saving $1,242 annually, and reducing webhook latency to 12–35 ms.

Problem

Commercial workflow automation platforms lock users into expensive per-task pricing, limited features, and data privacy risks.

Outcome

The self-hosted n8n setup handled 142,680 executions in 90 days, saved $1,242/year compared to Zapier, achieved 60x faster webhook latency, and enabled local AI integration without vendor lock‑in.

Workflow

• Set up project directories and permissions
• Generate cryptographic secrets in .env
• Create docker-compose.yml with services for n8n, PostgreSQL, and Caddy
• Deploy containers with Docker Compose
• Verify HTTPS and webhook functionality
• Monitor task execution and performance

Evidence

Over 90 days, the engine processed 142,680 execution tasks across 18 autonomous workflows

Source

$0.00 ($0 SaaS Fee)

Source

12ms – 35ms (Sub-second)

Source