SpikeUI
A visual, WYSIWYG UI designer that exports a design directly to HTML, CSS and JavaScript or to a native Windows application, sold as a one-time purchase with no subscription, and including a built-in AI assistant that can build components from a description.
SpikeUI is a visual UI designer where the design shown in the editor matches the exported result, letting a user drag, drop and adjust component properties visually while still having full access to the generated code underneath. A finished design can be exported to plain HTML, CSS and JavaScript, or directly to a native Windows application, and everything the tool produces is self-contained in a single output with no external libraries, content-delivery-network dependencies or auxiliary frameworks needed at runtime.
The editor and its documentation support multiple languages, and it includes a built-in AI assistant that can design, wire up and refine components on the canvas from a written description, subject to the user approving its plan before changes are applied. It is distributed as a one-time purchase rather than a subscription, and the software itself works offline once installed, with no dependencies at runtime.