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All add-ons for openHAB 2 are part of the distribution. This includes all 2.x Bindings as well as all 1.x add-ons that were reported to be compatible. There are several ways you can install an add-on. These are described under Installation of Add-ons below

Add-on Type Description
Bindings Bindings integrate physical hardware, external systems and web services in openHAB
User Interfaces User interfaces are either native smartphone apps or web applications that access the openHAB server through the REST API
Persistence Persistence services allow openHAB to store time series data for history-based actions or statistics
Actions Actions are predefined methods for openHAB rules and scripts
Transformations Transformations are used to translate between technical and human-readable values for Items
Voice Services Services that provide voice enabling features, such as text-to-speech, speech-to-text etc.
3rd Party System Integration Expose openHAB to external systems

Installation of Add-ons

Depending on the package you have choosen during your first time setup, there are already some pre-installed add-ons. Additional add-ons can be installed in the different ways, described below.

Through Paper UI

Navigate to the add-ons section. Search for the desired add-on in the categories and press install.

installing Add-ons through Paper UI

Through Configuration Files

For this installation option you need to know the id of the desired add-on, e.g., network or mqtt1.

You can find it out with the following command within openHAB console:

feature:list | grep ^openhab

A list of all available add-ons starting with “openhab” will be returned. It could look similar to this example:

openhab-transformation-xslt               | 0.9.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | XSLT Transformation
openhab-voice-mactts                      | 0.9.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | macOS Text-to-Speech
openhab-binding-amazondashbutton          | 2.0.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | Amazon Dash Button Binding
openhab-binding-astro                     | 2.0.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | Astro Binding
openhab-binding-autelis                   | 2.0.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | Autelis Binding
openhab-binding-avmfritz                  | 2.0.0.SNAPSHOT   |          | Uninstalled | openhab-aggregate-xml   | AVM Fritz!Box Binding
openhab-binding-network                   │ 2.2.0            │          │ Uninstalled │ openhab-addons-2.2.0    │ Network Binding

According to the naming convention for bundles the id for the shown example is network.

Another way to find the correct id is to look at the URL of the add-on documentation page. For example the url for the mqtt Binding documentation is

In this case, the id would be “mqtt1”. Did you notice the trailing 1 in this id? This is because the mqtt Binding is a 1.x add-on.

The trailing 1 has to be appended for binding- and misc-addons. It is not needed for other addon types like persistence.

With this information we can now edit the addons.cfg file in the config/services folder on the machine you are running openHAB on. The path is depending on your installation. You can find out the correct locations on the corresponding documentation pages, e.g. Linux or Windows.

The file could look like this (depending on your choosen package and already installed add-ons):

package = standard
ui = basic,paper,habpanel
action = pushover
binding = astro,mqtt1
transformation = jsonpath
persistence = influxdb
misc = restdocs

To install the network Binding like we want in this example, we just need to add the id network to the Binding section.

binding = astro,mqtt1,network

After saving the file, the add-on will be installed.

Through manually provided add-ons

Attention: This option is adressed to advanced users. Installing add-os with a .jarfile can lead to problems, because add-on dependencies may not be installed. Please make sure to use this option only in special cases (like add-on testing for an upcoming version) or when you know what you are doing.

For this installation option you need a bundles .jar file. One way of retrieving those files is mentiones above in the openHAB console part.

Place the .jar file in the add-ons folder on the machine you are running openHAB on. As described already for the addons.cfg option, the path is depending on your installation. Place the .jar file in the folder Additional add-on files as described in File Locations (Linux, Windows or macOS).