html-validate¹ is an awesome offline HTML validator written in Node.js (with accessibility validation, etc.) I just started looking into it and whipped up a little example to test it out.
In case it helps someone else get started with it, here’s the code:
https://gitlab.com/html-validate/html-validate/-/issues/210
Enjoy!
@aral Nice - thank you!
@aral what do you use it for or rather why did you build it?