The fair-code workflow automation tool
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Open-source developer platform for building scripts, workflows, and internal apps
Overview
Windmill is an open-source developer platform that turns scripts written in Python, TypeScript, Go, and other languages into workflows, scheduled jobs, APIs, and internal UI applications. It offers a free self-hosted community edition and a paid Enterprise tier with unlimited workspaces, seat-based access control, and priority support, alongside compute-unit-based pricing for scaling execution capacity.
The honest half
Concrete and checkable, so you can decide whether any of them matter to you. This is the half of a review a vendor will not write about Windmill.
Pricing
Taken from the vendor's own pricing page. Prices move, so check before you buy.
Free / Open-source
Free
Enterprise
$120 /mo
Capabilities
Script-to-workflow engine
Compose scripts written in multiple languages into multi-step workflows.
Auto-generated UIs
Automatically builds forms and apps from script inputs and outputs.
Self-hosted deployment
Free, open-source self-hosting with unlimited executions.
Git sync
Sync workspace scripts and flows with a Git repository.
SSO support
Single sign-on with seat-based operator and developer roles.
Audit logs
Enterprise-tier audit logging for compliance and traceability.
Answered, with sources
Each answer names the page it came from, so you can check it rather than take our word for it.
Windmill's Free and Open-source edition is $0/month for self-hosted use with unlimited executions, while Enterprise starts at $120/month with unlimited workspaces and uncapped SSO seats, priced further by developer/operator seats and compute units.
SourceThe free self-hosted plan supports unlimited executions but caps SSO at 10 users, workspaces at 3, groups/permissions at 4, and email triggers at 100 per day.
SourceEnterprise usage is metered through seats (developer seats at $20/month, operator seats at $10/month) and compute units, e.g. $100/month for 2 standard-worker compute units.
SourceThe pricing page addresses this directly as an FAQ topic, noting that self-hosted applications built on the open-source edition can continue running independently of Windmill the company.
SourceKeep looking
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