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Automation Integration · head to head

Activiti vs ESPHome

Activiti logo

Activiti

Automation Integration

Apache 2.0 BPMN engine under Hyland, from which Flowable and Camunda were forked

From
Free
Rated
-
Full reviewWebsite
ESPHome logo

ESPHome

Smart Home

Custom firmware for ESP8266/ESP32 smart home devices

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Activiti the last stable release was 8.2.0 in January 2024, and while release candidate builds continue, a two-year gap between stable versions is a real risk signal for a production dependency.; ESPHome eSPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • They diverge on capability: Activiti covers BPMN 2.0 engine, ESPHome covers YAML Configuration.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Activiti and ESPHome actually diverge.

Attributes where Activiti and ESPHome differ
AttributeActivitiESPHome
Pricing modelOpen source, no licence feeopen-source
PlatformsLinux, Windows, Docker, KubernetesESP8266, ESP32, Docker, Raspberry Pi
CategoryAutomation IntegrationSmart Home
FoundedUnknown2018

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 Activiti

  • BPMN 2.0 engine
  • Activiti Cloud
  • Modeler
  • Java and REST APIs
  • Pluggable persistence
  • Identity integration

Only in ESPHome

  • YAML Configuration
  • OTA Updates
  • Home Assistant Native
  • Custom Components
  • Home Assistant
  • MQTT
  • API
  • Native integration

What people use each for

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

Activiti

  • An Alfresco or Hyland content services deployment where Activiti is already the embedded workflow enginenot ESPHome
  • A Java application that needs to embed a BPMN engine as a library under a permissive licencenot ESPHome
  • An organisation that has ruled out Camunda 8 on licence grounds and needs an Apache 2.0 alternativenot ESPHome
  • Document-centric approval workflows where the process engine sits inside the content management stack rather than beside itnot ESPHome

ESPHome

  • Building custom smart home sensors and switches on ESP32 hardwarenot Activiti
  • Replacing vendor cloud firmware on ESP based devices with locally controlled firmwarenot Activiti
  • Integrating DIY devices into Home Assistant over a native API or MQTTnot Activiti

Where each one falls short

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

Activiti

  • The last stable release was 8.2.0 in January 2024, and while release candidate builds continue, a two-year gap between stable versions is a real risk signal for a production dependency.
  • Both Camunda and Flowable forked away and took large parts of the contributor base with them, so the community, tutorials and third-party tooling around Activiti are much thinner than around either fork.
  • Commercial support is only realistically available by buying Hyland Alfresco subscriptions, so there is no way to pay for Activiti support on its own.
  • Activiti Cloud imposes a distributed architecture of several Spring Boot services plus Keycloak, which is heavy for teams who simply wanted an embeddable engine.
  • Documentation is dated and partly split between old Alfresco sites and Hyland Connect, and the transition between Activiti 6, 7 and 8 architectures makes much of the older material actively misleading.

ESPHome

  • ESPHome runs only on supported microcontrollers; the project recommends ESP32, ESP32-S3, ESP32-C3 and ESP32-C6 and advises against ESP8266 for new projects
  • Support for ESP32-H2, RP2040 and other newer chips is documented as less mature
  • Large displays and some sensors do not work well on ESP8266 because of its limited RAM, which is roughly a fifth of an ESP32

Pricing, plan by plan

Activiti

Free
  • ActivitiFree
    • Apache 2.0 licence
    • Embeddable Java library or Activiti Cloud services
    • No usage limits

ESPHome

Free
  • CommunityFree
    • Full firmware
    • Home Assistant integration
    • Custom sensors

Which should you pick?

Choose Activiti if

  • You need bpmn 2.0 engine.
  • You want to start without paying.
  • You work on Linux, Windows, Docker, Kubernetes.
  • You also want activiti cloud.
Activiti review

Choose ESPHome if

  • You need yaml configuration.
  • You want to start without paying.
  • You work on ESP8266, ESP32, Docker, Raspberry Pi.
  • You also want ota updates.
ESPHome review

Questions people ask

Is Activiti or ESPHome better?
Neither clearly leads. Activiti starts at Free and ESPHome at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Activiti or ESPHome?
Activiti starts at Free and ESPHome at Free.
Does Activiti or ESPHome run on more platforms?
Activiti runs on Linux, Windows, Docker, Kubernetes. ESPHome runs on ESP8266, ESP32, Docker, Raspberry Pi.
Can I use Activiti for free?
Both have a free tier, so you can try either at no cost before committing.
What is Activiti best used for?
Activiti is most often used for an alfresco or hyland content services deployment where activiti is already the embedded workflow engine, a java application that needs to embed a bpmn engine as a library under a permissive licence, an organisation that has ruled out camunda 8 on licence grounds and needs an apache 2.0 alternative, document-centric approval workflows where the process engine sits inside the content management stack rather than beside it. Of those, an alfresco or hyland content services deployment where activiti is already the embedded workflow engine and a java application that needs to embed a bpmn engine as a library under a permissive licence are not what ESPHome is typically brought in for.
What can Activiti do that ESPHome cannot?
Activiti covers BPMN 2.0 engine, Activiti Cloud, Modeler, Java and REST APIs. ESPHome covers YAML Configuration, OTA Updates, Home Assistant Native, Custom Components.

Answered from the vendors’ own pages

Activiti: Is Activiti still maintained?

Yes, Hyland continues to publish builds, but the last stable release was 8.2.0 in January 2024.

ESPHome: Is ESPHome free to use?

Yes. ESPHome is free and open-source software. The Desktop App, Device Builder, components, and recipe tools are all available at no cost.

Source
Activiti: What is its relationship to Camunda and Flowable?

Both are forks of Activiti: Camunda in 2013 and Flowable in 2016, when core developers left Alfresco.

ESPHome: What is the cost to run ESPHome?

ESPHome software itself is completely free. Hardware devices and components used with ESPHome vary in cost depending on which microcontrollers and IoT devices you choose.

Source
Activiti: What licence is it?

Apache 2.0, which distinguishes it from Camunda 8’s source-available licence.

ESPHome: Does ESPHome require a subscription or license fee?

No. ESPHome is open-source software with no subscription fees, license costs, or commercial restrictions associated with its use.

Source
Activiti: Should I choose Activiti for a new project?

Only if the Apache licence or an existing Alfresco deployment is decisive. Flowable and Camunda have far larger ecosystems.

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