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Software · head to head

Windmill vs HighLevel

Windmill logo

Windmill

Software

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

From
Free
Rated
-
Full reviewWebsite
H

HighLevel

Software

The all-in-one sales and marketing platform for agencies

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Windmill has a free tier, so it costs nothing to try first.
  • Each has a real cost: Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.; HighLevel starter plan is limited to a single sub-account, so agencies must upgrade to the $297/month Unlimited plan to manage multiple clients

Where they differ

Only the attributes on which Windmill and HighLevel actually diverge.

Attributes where Windmill and HighLevel differ
AttributeWindmillHighLevel
Starting priceFreeOn request
Pricing modelopen-sourcesubscription
Free tierYesNo
Platformsweb, api, linux, windows, macWeb

Identical on both: user rating (Not yet rated), category (Unknown).

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 Windmill

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

Only in HighLevel

Nothing recorded that Windmill does not also cover.

What people use each for

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

Windmill

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

HighLevel

No use cases recorded yet. See the HighLevel review.

Where each one falls short

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

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.

HighLevel

  • Starter plan is limited to a single sub-account, so agencies must upgrade to the $297/month Unlimited plan to manage multiple clients

Pricing, plan by plan

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)

HighLevel

On request

No published plan breakdown. See the HighLevel review.

Which should you pick?

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

Choose HighLevel if

Nothing in the data separates HighLevel from Windmill on the points above - pick on price and on how each one feels to use.

HighLevel review

Questions people ask

Is Windmill or HighLevel better?
Neither clearly leads. Windmill starts at Free and HighLevel at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Windmill or HighLevel?
Windmill has a free tier; the other does not. Paid plans start at Free for Windmill and On request for HighLevel.
Does Windmill or HighLevel run on more platforms?
Windmill runs on web, api, linux, windows, mac. HighLevel runs on Web.
Can I use Windmill for free?
Yes. Windmill has a free tier, so you can try it without paying. HighLevel starts at On request.
What is Windmill best used for?
Windmill is most often used for turning ad-hoc scripts into scheduled jobs and apis, building internal tools from existing python/typescript code, self-hosted automation for engineering teams, orchestrating multi-language workflows. Of those, turning ad-hoc scripts into scheduled jobs and apis and building internal tools from existing python/typescript code are not what HighLevel is typically brought in for.
What can Windmill do that HighLevel cannot?
Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

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
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
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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