Windmill Has a Free Open-Source Workflow Platform — Scripts to Production in Minutes Not Days

Windmill Takes Scripts From Laptop to Production in Minutes

You wrote a Python script. Now you need it scheduled, with retries, logging, permissions, and a UI. That takes weeks with custom infra. Windmill does it in minutes.

What Windmill Does

• Script editor — TypeScript, Python, Go, Bash, SQL, GraphQL
• Flows — chain scripts into workflows with branching
• Schedules — cron jobs with monitoring
• Apps — drag-and-drop UI builder connected to scripts
• Approval flows — human-in-the-loop steps
• Auto-generated UI — every script gets a form UI automatically

Quick Start

# Docker
docker compose up -d

# Write a script (Python)
# main(name: str, count: int = 5) -> list:
import requests
def main(name: str, count: int = 5):
    results = []
    for i in range(count):
        r = requests.get(f"https://api.example.com/{name}")
        results.append(r.json())
    return results

Windmill auto-generates a form with name (text) and count (number) inputs. One click to run, schedule, or share.

Windmill vs n8n vs Airflow

Feature	Windmill	n8n	Airflow
Code-first	Yes	No-code	Python DAGs
Languages	6+	JavaScript	Python
UI builder	Yes	No	No
Auto-generated UI	Yes	No	No
Self-hosted	Yes	Yes	Yes
Learning curve	Low	Low	High

Free Tier (Cloud)

Resource	Free
Users	1
Executions	1,000/month
Scripts	Unlimited

Self-hosted: free, unlimited.

Why Windmill

1. Code-first — real programming languages, not visual blocks
2. Auto UI — every function gets a web form instantly
3. Fast — Rust runtime, sub-100ms cold starts
4. Approval flows — add human review to any step
5. Open source — AGPL, self-host for free

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📧 [e-mail] — Workflow automation consulting

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