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Automation Integration · head to head

Boomi vs Windmill

Boomi logo

Boomi

Automation Integration

The world's leading cloud integration platform

From
Free
Rated
-
Full reviewWebsite
Windmill logo

Windmill

Automation Integration

Open-source developer platform for building scripts, workflows, and internal apps

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Boomi most pricing requires contacting sales; no transparent plan costs published; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Boomi covers Cloud integration, Windmill covers Script-to-workflow engine.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Boomi and Windmill actually diverge.

Attributes where Boomi and Windmill differ
AttributeBoomiWindmill
Pricing modelusage-basedopen-source
PlatformsWeb, On-premiseweb, api, linux, windows, mac
Founded2000Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated), category (Automation Integration).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Boomi

  • Cloud integration
  • API management
  • Master data management
  • Trading partner network
  • Process automation
  • Real-time sync
  • Monitoring
  • Analytics

Only in Windmill

  • Script-to-workflow engine
  • Auto-generated UIs
  • Self-hosted deployment
  • Git sync
  • SSO support
  • Audit logs

What people use each for

The jobs each tool is most often brought in to do.

Boomi

  • Integrating cloud and on-premises applicationsnot Windmill
  • API management and publishingnot Windmill
  • Master data management across systemsnot Windmill
  • EDI and B2B data exchangenot Windmill
  • Workflow automation between business systemsnot Windmill

Windmill

  • Turning ad-hoc scripts into scheduled jobs and APIsnot Boomi
  • Building internal tools from existing Python/TypeScript codenot Boomi
  • Self-hosted automation for engineering teamsnot Boomi
  • Orchestrating multi-language workflowsnot Boomi

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Boomi

  • Most pricing requires contacting sales; no transparent plan costs published
  • Free trial is 30 days but requires sign-up
  • Base plan limited to one environment and two users

Windmill

  • Free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • Compute unit and seat-based pricing (developer vs. operator seats, worker compute units) adds pricing complexity beyond a flat monthly fee.
  • Email triggers are capped at 100/day on the free tier, limiting event-driven use cases without upgrading.
  • Smaller ecosystem of pre-built integrations compared to more established automation tools like n8n.

Pricing, plan by plan

Boomi

Free
  • Base$99/month
    • Pay-as-you-go
    • One environment
    • Two users
  • Professional$undefined/mo
    • Two environments
    • Unlimited users
  • Enterprise$undefined/mo
    • Unlimited environments

Windmill

Free
  • Free / Open-sourceFree
    • Unlimited executions
    • Self-hosted deployment
    • Max 10 users with SSO
  • Enterprise$120/month
    • Unlimited executions and workspaces
    • Uncapped SSO seats
    • 24/7 priority support (3-hour response)

Which should you pick?

Choose Boomi if

  • You need cloud integration.
  • You want to start without paying.
  • You work on Web, On-premise.
  • You also want api management.
Boomi review

Choose Windmill if

  • You need script-to-workflow engine.
  • You want to start without paying.
  • You work on web, api, linux, windows, mac.
  • You also want auto-generated uis.
Windmill review

Questions people ask

Is Boomi or Windmill better?
Neither clearly leads. Boomi starts at Free and Windmill at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Boomi or Windmill?
Boomi starts at Free and Windmill at Free.
Does Boomi or Windmill run on more platforms?
Boomi runs on Web, On-premise. Windmill runs on web, api, linux, windows, mac.
Can I use Boomi for free?
Both have a free tier, so you can try either at no cost before committing.
What is Boomi best used for?
Boomi is most often used for integrating cloud and on-premises applications, api management and publishing, master data management across systems, edi and b2b data exchange. Of those, integrating cloud and on-premises applications and api management and publishing are not what Windmill is typically brought in for.
What can Boomi do that Windmill cannot?
Boomi covers Cloud integration, API management, Master data management, Trading partner network. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Boomi: What is Boomi's minimum monthly cost for pay-as-you-go pricing?

Boomi's base plan starts at $99 per month for pay-as-you-go usage with no contract required, including one environment and two users.

Source
Windmill: What does Windmill cost?

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.

Source
Boomi: Does Boomi offer a free trial?

Boomi provides a 30-day free trial with full platform access, including core integration features and data mapping capabilities.

Source
Windmill: Is there a free plan and what are its limits?

The 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.

Source
Boomi: Which plans require contacting sales for pricing?

Professional, Professional Plus, Enterprise, and Enterprise Plus plans for Integration, API Management, and Data Hub require contacting Boomi sales for custom pricing.

Source
Windmill: How is usage metered on Windmill Enterprise?

Enterprise 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.

Source
Windmill: What happens to a self-hosted Windmill deployment if the company shuts down?

The 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.

Source
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