lua-minify is a Lua library to minify html5 and css3. It's written in pure Lua 5.3, and it's written using test-driven development.

The project's name isn't definitive, and might/will change, as there are already a few projects named lua-minify.

Before you start using lua-minify, you need to know a few assumptions that it makes:

• You don't mess with the white-space CSS property. Only <pre> tags will keep the data as it is in the source file.
• You don't put code in comments (IE's conditional comments are stupid, why are you even trying to support IE?)
• It doesn't optimize inline javascript. You probably shouldn't be using inline javascript anyway.
• It doesn't support non-standard tags: if you use a framework like vue, and you create a tag starting with pre (for exemple), it will break the parser.
• It doesn't support twig/jinja/django and other templating engines. you should only use lua-minify on pure HTML5 and CSS3.

Everything should pretty much work as-is. CSS isn't optimized, since the CSS minifier isn't written yet.