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Automation Integration · head to head

Grouparoo vs Windmill

Grouparoo logo

Grouparoo

Automation Integration

The open-source data sync 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: Grouparoo enterprise Cloud tier pricing not disclosed; requires contacting sales; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Grouparoo covers Data syncing, 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 Grouparoo and Windmill actually diverge.

Attributes where Grouparoo and Windmill differ
AttributeGrouparooWindmill
Pricing modelusage-basedopen-source
PlatformsWeb, Self-hostedweb, api, linux, windows, mac
Founded2020Unknown

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 Grouparoo

  • Data syncing
  • Audience building
  • Real-time activation
  • Data transformation
  • Error handling
  • Monitoring
  • Scheduling
  • 100+ integrations

Only in Windmill

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

Both cover

  • Self-hosted deployment

What people use each for

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

Grouparoo

  • Customer data synchronization across platformsnot Windmill
  • CDP (Customer Data Platform) integration and data activationnot Windmill

Windmill

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

Where each one falls short

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

Grouparoo

  • Enterprise Cloud tier pricing not disclosed; requires contacting sales
  • Charges based on synced records, not unique destinations or integration count

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

Grouparoo

Free
  • Community EditionFree
    • Open-source, self-hosted
    • Optional enterprise UI add-on: $100/month
  • Standard Cloud$150/month
    • 100K records synced/month
    • Usage-based model with tiered pricing
  • Standard Cloud$300/month
    • 300K records synced/month
  • Standard Cloud$600/month
    • 1,000,000 records synced/month

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 Grouparoo if

  • You need data syncing.
  • You want to start without paying.
  • You work on Web, Self-hosted.
  • You also want audience building.
Grouparoo 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 Grouparoo or Windmill better?
Neither clearly leads. Grouparoo 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, Grouparoo or Windmill?
Grouparoo starts at Free and Windmill at Free.
Does Grouparoo or Windmill run on more platforms?
Grouparoo runs on Web, Self-hosted. Windmill runs on web, api, linux, windows, mac.
Can I use Grouparoo for free?
Both have a free tier, so you can try either at no cost before committing.
What is Grouparoo best used for?
Grouparoo is most often used for customer data synchronization across platforms, cdp (customer data platform) integration and data activation. Of those, customer data synchronization across platforms and cdp (customer data platform) integration and data activation are not what Windmill is typically brought in for.
What can Grouparoo do that Windmill cannot?
Grouparoo covers Data syncing, Audience building, Real-time activation, Data transformation. Windmill covers Script-to-workflow engine, Auto-generated UIs, Git sync, SSO support. Both handle Self-hosted deployment.

Answered from the vendors’ own pages

Grouparoo: Does Grouparoo have a free version?

Yes. Grouparoo Community Edition is free and open-source with self-hosted deployment. An optional enterprise UI add-on is available at $100/month.

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
Grouparoo: How much does Grouparoo Standard Cloud cost?

Grouparoo Standard Cloud uses usage-based pricing: $150/month for 100K records synced, $300/month for 300K records, and $600/month for 1 million records synced monthly.

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
Grouparoo: What does 'synced records' mean in Grouparoo pricing?

Each Record sent to a Destination counts as one synced Record in Grouparoo's usage calculation, regardless of how many destinations that record is sent to. Users can monitor usage through their dashboard.

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
Grouparoo: Can I use multiple integrations with Grouparoo?

Yes. All Grouparoo tiers include unlimited integrations. You can connect as many Sources and Destinations as needed without additional fees.

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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