Build UIs the simple way.
Jon Udell • 9 Jun 20265 min read
A safer target language for LLMs
XMLUI is to React/CSS as Java and C# are to C++
Jon Udell • 6 May 20263 min read
The XMLUI loop for Claude Code and Codex
You're up and running with an AI assistant (Claude Code or Codex) that knows the XMLUI docs, and a built-in Inspector for debugging. Here's what happens next.
Jon Udell • 8 Apr 20265 min read
Semantic tracing: how ARIA unlocks debugging, testing, and AI reasoning
AI writes more code than ever. With semantic traces — enriched by ARIA labels — developers, testers, and AIs see exactly what that code does at runtime.
Jon Udell • 20 Feb 20263 min read
Improving the XMLUI MCP server
It's a virtuous cycle and you can help us turn the wheel.
Jon Udell • 19 Dec 20252 min read
Introducing the XMLUI CLI
Your all-in-one tool for working with XMLUI.
Jon Udell • 28 Oct 20254 min read
An XMLUI-powered blog
How we made this blog with a few dozen lines of XMLUI.
Jon Udell • 27 Oct 20253 min read
Reproducible XMLUI
Use playgrounds to infuse docs with live examples, iterate on prototypes, and reproduce bugs.
Jon Udell • 18 Jul 202512 min read