--- title: "Device Tools" description: "Device Tools is a Marketplace integration for Home Assistant. It has 555 installs sharing analytics and was last updated October 20, 2026." canonical: "https://vulpo.app/integrations/marketplace/eulemitkeule-device-tools" url: "https://vulpo.app/integrations/marketplace/eulemitkeule-device-tools.md" last-updated: "2026-10-22" version: "1.4" --- # Device Tools > Device Tools is a Marketplace integration for Home Assistant. It has 555 installs sharing analytics and was last updated October 20, 2026. Device Tools is a custom integration that changes devices and entities provided by other integrations. It can edit device attributes such as manufacturer, model, and software version, and assign entities like template sensors or helpers to the device they describe. It can also create new devices, merge several devices by moving their entities onto one device, and change the device or entity category of a single entity. Each modification is its own entry, and it remembers original values, so deleting or disabling it restores them. When an integration updates its devices, the modification is applied again, and a repair issue appears if a referenced device or entity is gone. It is added as a custom repository in the Marketplace and set up in the UI. Automatic summary of the README and code of EuleMitKeule/device-tools. Something wrong, or are you the maintainer and want your own text here? [Get in touch](https://vulpo.app/contact) Not in the Marketplace catalog. Add as a custom repository in the Marketplace. ## Supports - **From the Marketplace**: Installed through the Marketplace, formerly HACS. - **Actively maintained**: Its author released or pushed a change in the last six months. ## Setting it up Add its repository to the Marketplace as a custom repository and install it, then restart Home Assistant and add it under Settings, Devices and services. ### Change a device - **Device** Also asked when at the merge devices step. ### Change an entity - **Entity** ### Create a device - **Name** ### Modify device - **Manufacturer**: The manufacturer of the device - **Model**: The model name of the device - **Model ID**: The model identifier of the device - **Software version**: The software version of the device - **Hardware version**: The hardware version of the device - **Serial number**: The serial number of the device - **Connected via**: The device this device is connected through, e.g. a hub or bridge - **Configuration URL**: A URL to configure the device, e.g. https://192.168.1.10 - **Entry type**: Choose service for devices that are not physical, e.g. online services - **Assigned entities**: The entities to show on this device. Entities that already belong to the device are not listed. Removed entities return to their original device. ### Modify entity - **Device**: The device this entity belongs to - **Entity category**: Configuration and diagnostic entities are shown separately on the device page ### Merge devices - **Devices to merge**: The devices whose entities are moved to the device. The devices themselves are kept, removing a device here moves its entities back. ### After setup - **Modification type**: The type of this modification, it cannot be changed - **Modified device or entity**: The device or entity changed by this modification, it cannot be changed - **Manufacturer**: The manufacturer of the device - **Model**: The model name of the device - **Model ID**: The model identifier of the device - **Software version**: The software version of the device - **Hardware version**: The hardware version of the device - **Serial number**: The serial number of the device - **Connected via**: The device this device is connected through, e.g. a hub or bridge - **Configuration URL**: A URL to configure the device, e.g. https://192.168.1.10 - **Entry type**: Choose service for devices that are not physical, e.g. online services - **Assigned entities**: The entities to show on this device. Entities that already belong to the device are not listed. Removed entities return to their original device. - **Device**: The device this entity belongs to - **Entity category**: Configuration and diagnostic entities are shown separately on the device page - **Devices to merge**: The devices whose entities are moved to the device. The devices themselves are kept, removing a device here moves its entities back. Texts from the code of [EuleMitKeule/device-tools](https://github.com/EuleMitKeule/device-tools). ## Troubleshooting - **Diagnostics**: Downloads a diagnostics file to attach to a bug report. ## From the README > Every change is reverted as soon as you delete or disable the modification. From the README of [EuleMitKeule/device-tools](https://github.com/EuleMitKeule/device-tools#readme), [MIT License](https://spdx.org/licenses/MIT.html). Shortened. ## At a glance - Kind: Marketplace integration - Number: 555 installs sharing analytics; 283 GitHub stars - Connection: Connection not stated - Upkeep: Updated in the last 6 months - Needs: Added as a custom repository in the Marketplace - Latest version: 1.9.4, last updated October 20, 2026 - Domain: `device_tools` - Source: - Issues: Independent directory, made by the developer of Vulpo. Not affiliated with Home Assistant or the Open Home Foundation. [About these numbers](https://vulpo.app/integrations/about) Last updated 2026-10-22. Source: https://vulpo.app/integrations/marketplace/eulemitkeule-device-tools --- - HTML version of this page: https://vulpo.app/integrations/marketplace/eulemitkeule-device-tools - Site index for agents: https://vulpo.app/llms.txt - Everything in one document: https://vulpo.app/llms-full.txt - All pages: https://vulpo.app/sitemap.xml