htmx vs Radix UI

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

htmx compared with Radix UI
Detail	htmx	Radix UI
What it does	High power tools for HTML	Components, icons, and colors for building high-quality, accessible UI. Free and open-source.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	free
Pricing	Not given	Not given
Key features	AJAX requests CSS Transitions WebSockets support Server Sent Events HTML attribute-based API	Pre-built components Icons Color system No configuration required
What makes it different	Small library (~16k min.gz'd) Dependency-free 67% smaller code base than react Extends HTML capabilities directly	Free and open-source Optimized for fast development Accessibility built-in
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	78 no change since last check	80 no change since last check
Trust Flow (Majestic)	41	31
Citation Flow (Majestic)	52	51
Referring domains (Majestic)	5744	4533

3 details filled in for both companies.