Built with Blockly: UGSo Blocks for Home Assistant

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rockbaer2007 “rockbaer2007”

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Oct 12, 2026, 10:59:44 AM (2 days ago) Oct 12

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Hi Blockly community,

I’d like to share UGSo Blocks for HA, an open-source visual editor for creating native Home Assistant automations, built with Blockly.

The editor combines Home Assistant triggers, conditions and actions with logic, variables, maths, text and list operations. It generates Home Assistant YAML and Jinja expressions, which Home Assistant evaluates.

Features include:

Home Assistant entity selection.
Blockly themes and toolbox search.
A custom block/template editor with Blockly and output previews.
Custom block packages shared through copyable JSON or ZIP files.
Portable project files that include the custom block definitions they use.

The project is currently experimental and available as a Home Assistant app/add-on.

English documentation:
https://opensource.ugso-software.de/en/projects/blocks-for-ha/

Source code:
https://github.com/rockbaer2007/ugso-ha-mqtt-addons/tree/master/blocks_for_ha

Thank you to the Blockly team and plugin contributors! Feedback on the editor, custom block approach and usability would be very welcome.