I am releasing a v0.1 standalone version of the CSS3 Selector builder through Disruptive Innovations. It's available here and it allows to write a CSS3 selector in a human-friendly way.

Warnings:

  • Tristan Nitot reported problems using Deer Park; please use Firefox 1.0.6.
  • the code is not free, and you're not allowed to copy the code elsewhere w/o prior written authorization
  • yes, I know, some CSS3 simple selectors are missing
  • there's no sanity control on the textboxes

Enjoy :-)