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Tasmota vs Windmill

Tasmota logo

Tasmota

Smart Home

Open-source firmware for ESP8266/ESP32 based devices

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: Tasmota tasmota only runs on Espressif ESP8266, ESP8285, ESP32, ESP32-S and ESP32-C3 chipsets, so devices built on other silicon cannot use it; Windmill free self-hosted tier caps SSO users at 10 and workspaces at 3, requiring Enterprise for larger teams.
  • They diverge on capability: Tasmota covers Local Control, 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 Tasmota and Windmill actually diverge.

Attributes where Tasmota and Windmill differ
AttributeTasmotaWindmill
PlatformsESP8266, ESP32, Compatible devicesweb, api, linux, windows, mac
CategorySmart HomeAutomation Integration
Founded2017Unknown

Identical on both: starting price (Free), pricing model (open-source), 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 Tasmota

  • Local Control
  • MQTT Support
  • Web Interface
  • OTA Updates
  • Home Assistant
  • Domoticz
  • OpenHAB
  • Node-RED

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.

Tasmota

  • Replacing vendor cloud firmware on ESP based smart plugs and switchesnot Windmill
  • Controlling smart home devices locally over MQTT or HTTPnot Windmill
  • Integrating off the shelf Wi-Fi devices with Home Assistant without a cloud accountnot Windmill

Windmill

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

Where each one falls short

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

Tasmota

  • Tasmota only runs on Espressif ESP8266, ESP8285, ESP32, ESP32-S and ESP32-C3 chipsets, so devices built on other silicon cannot use it
  • Initial installation requires opening the device, bridging GPIO0 to ground during boot and using a 3.3V serial programmer; a 5V programmer damages the chip
  • The ESP chip needs at least 150mA at 3.3V, so an underpowered supply causes flashing and stability failures
  • The Wi-Fi setup access point stays active for only 3 minutes, after which the device must be power cycled to try again
  • The Power Cycle Recovery feature can reset a device to firmware defaults where mains power fluctuates, and the docs advise disabling it in that case

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

Tasmota

Free
  • CommunityFree
    • Full firmware
    • MQTT
    • Web UI

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 Tasmota if

  • You need local control.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Compatible devices.
  • You also want mqtt support.
Tasmota 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 Tasmota or Windmill better?
Neither clearly leads. Tasmota 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, Tasmota or Windmill?
Tasmota starts at Free and Windmill at Free.
Does Tasmota or Windmill run on more platforms?
Tasmota runs on ESP8266, ESP32, Compatible devices. Windmill runs on web, api, linux, windows, mac.
Can I use Tasmota for free?
Both have a free tier, so you can try either at no cost before committing.
What is Tasmota best used for?
Tasmota is most often used for replacing vendor cloud firmware on esp based smart plugs and switches, controlling smart home devices locally over mqtt or http, integrating off the shelf wi-fi devices with home assistant without a cloud account. Of those, replacing vendor cloud firmware on esp based smart plugs and switches and controlling smart home devices locally over mqtt or http are not what Windmill is typically brought in for.
What can Tasmota do that Windmill cannot?
Tasmota covers Local Control, MQTT Support, Web Interface, OTA Updates. Windmill covers Script-to-workflow engine, Auto-generated UIs, Self-hosted deployment, Git sync.

Answered from the vendors’ own pages

Tasmota: What is the cost of Tasmota?

Tasmota is completely free as open-source firmware for ESP devices. Source code is available on GitHub, and the project accepts donations for continued development.

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
Tasmota: Can Tasmota be modified and redistributed?

Yes, Tasmota is open-source software allowing users to access, compile, modify, and redistribute builds according to the project LICENSE.

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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