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82
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Editorial pick✓ Verified working
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Windmill

Open-source workflow engine with apps, scripts, and AI agents

Try Windmill✓ Free trial available

Best for

Best for solo-agency or in-house engineers who want self-hostable workflow infrastructure without paying per-workflow pricing.

At a glance

Pricing
open-sourcefrom $10/mo
Setup time
1 hour
Learning curve
medium
Last verified
5/25/2026

What we love

  • ✓Genuinely open-source (AGPLv3) — self-host with no feature gating
  • ✓Polyglot — write each step in the best language for the job
  • ✓Active development and clear roadmap

Where it falls short

  • −Self-hosting requires DevOps capacity
  • −Smaller integration library than n8n or Zapier
  • −Cloud tier pricing competitive but not the cheapest

Pricing

✓ Pricing verified Jun 21, 2026

4 tiers

Community

$0

forever (self-hosted)

  • ✓Unlimited workflows
  • ✓All connectors
  • ✓AGPLv3

Cloud Free

$0

forever

  • ✓1000 executions/month
  • ✓Shared workspace

Pro

$10

per seat / month

  • ✓More executions
  • ✓Premium support

Enterprise

Custom

annual contract

  • ✓SSO
  • ✓Audit logs
  • ✓SLA

Why we picked it

If you can host it yourself, the value is hard to beat — Airflow-class orchestration plus an internal-tools layer in one repo. — MoreAI.tools editor
— MoreAI.tools editor

Overview

Windmill is an open-source developer platform for building workflows, internal apps, and AI agents from Python, TypeScript, Go, or SQL scripts. Self-hostable; cloud version available.

Key features

  • ●Run Python/TS/Go/SQL/Bash as workflow steps
  • ●Built-in app builder
  • ●Cron schedules and event triggers
  • ●AI agent runtimes (LangChain, OpenAI)
  • ●Multi-tenant workspaces with RBAC

Best use cases

Connect siloed apps

Sync customer, billing, or task data across the SaaS stack on a recurring schedule.

Document or data extraction

Pull structured fields out of PDFs, emails, or web pages and route them to a system of record.

Integrations

PostgreSQL
GitHub
Slack
Resend
OpenAI
Anthropic

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