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Marketing · head to head

Mautic vs Windmill

Mautic logo

Mautic

Marketing

The main open source marketing automation platform, self-hosted and GPL licensed

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: Mautic mautic depends on reliably scheduled cron jobs to process segments and send campaigns, and a misconfigured or silently failing schedule stops sends without an obvious error, which is the most common way Mautic deployments fail in production.; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Mautic covers Visual campaign builder, Windmill covers Script-to-workflow engine.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Mautic and Windmill actually diverge.

Attributes where Mautic and Windmill differ
AttributeMauticWindmill
Pricing modelOpen source, no licence feeopen-source
PlatformsWeb, Linux, Self-hosted, Dockerweb, api, linux, windows, mac
CategoryMarketingAutomation Integration

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

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 Mautic

  • Visual campaign builder
  • Contact management and segmentation
  • Landing pages and forms
  • Lead scoring
  • Dynamic web content
  • Email builder and A/B testing
  • Self-hosted data control
  • No feature gating

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.

Mautic

  • A marketing agency running automation for many clients that cannot pass on per-contact SaaS pricing at scalenot Windmill
  • A European university or public body whose data protection position requires contact data to stay on infrastructure it controlsnot Windmill
  • A company with a list of several hundred thousand contacts where SaaS per-contact pricing has become the largest line in the marketing budgetnot Windmill
  • A team that needs to modify the automation logic itself, not just configure it, and wants source access to do sonot Windmill

Windmill

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

Where each one falls short

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

Mautic

  • Mautic depends on reliably scheduled cron jobs to process segments and send campaigns, and a misconfigured or silently failing schedule stops sends without an obvious error, which is the most common way Mautic deployments fail in production.
  • Email sending is not included: you must arrange, pay for and warm up your own sending infrastructure through Amazon SES, SendGrid or similar, and deliverability problems become entirely your problem with no vendor to escalate to.
  • Acquia owns the commercial descendant, Campaign Studio, and is the largest contributor, so the loudest commercial interest in the ecosystem benefits from a hosted product rather than from the self-hosted one being easy.
  • Upgrades between major versions have historically been disruptive, requiring database migrations and plugin compatibility checks, so a neglected instance can become expensive to bring current.
  • The interface and the reporting are noticeably behind commercial platforms, so marketing teams that came from HubSpot or ActiveCampaign will find everyday tasks slower and will need training.

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

Mautic

Free
  • Self-hosted communityFree
    • GPL licensed, no licence fee and no contact limits
    • All features included, no paid edition
    • You provide hosting, database, cron scheduling and email sending
  • Managed Mautic hosting$undefined/month
    • Third-party managed hosting listed by the project
    • Updates, backups and cron scheduling handled for you
    • Pricing varies by provider and is not set by the project

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 Mautic if

  • You need visual campaign builder.
  • You want to start without paying.
  • You work on Web, Linux, Self-hosted, Docker.
  • You also want contact management and segmentation.
Mautic 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 Mautic or Windmill better?
Neither clearly leads. Mautic 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, Mautic or Windmill?
Mautic starts at Free and Windmill at Free.
Does Mautic or Windmill run on more platforms?
Mautic runs on Web, Linux, Self-hosted, Docker. Windmill runs on web, api, linux, windows, mac.
Can I use Mautic for free?
Both have a free tier, so you can try either at no cost before committing.
What is Mautic best used for?
Mautic is most often used for a marketing agency running automation for many clients that cannot pass on per-contact saas pricing at scale, a european university or public body whose data protection position requires contact data to stay on infrastructure it controls, a company with a list of several hundred thousand contacts where saas per-contact pricing has become the largest line in the marketing budget, a team that needs to modify the automation logic itself, not just configure it, and wants source access to do so. Of those, a marketing agency running automation for many clients that cannot pass on per-contact saas pricing at scale and a european university or public body whose data protection position requires contact data to stay on infrastructure it controls are not what Windmill is typically brought in for.
What can Mautic do that Windmill cannot?
Mautic covers Visual campaign builder, Contact management and segmentation, Landing pages and forms, Lead scoring. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Mautic: Is Mautic free?

Yes, GPL licensed with no licence fee and no contact limits. You pay for hosting, email sending and the staff time to maintain it.

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
Mautic: Does Acquia own Mautic?

Acquia acquired the founding commercial entity in 2019 and sells Campaign Studio built on it, but the Mautic trademark sits with the Open Source Collective and the project is community governed.

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
Mautic: What breaks most often?

Cron scheduling. If segment rebuilding and campaign triggers are not running on schedule, campaigns quietly stop sending with no alert.

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
Mautic: Can it handle large contact lists?

Yes, but performance at several hundred thousand contacts depends on database tuning and queue configuration, which is work you must do yourself.

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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