HTML is described as 'The standard markup language used to create web pages, and its elements form the building blocks of all websites' and is a Markup Language in the development category. There are seven alternatives to HTML for a variety of platforms, including Mac, Windows, Linux, Self-Hosted and Kotlin apps. The best HTML alternative is Quarkdown, which is both free and Open Source. Other great apps like HTML are Markdown, MEML, CommonMark and Qwik.
Quarkdown is a modern Markdown-based typesetting system, designed around the key concept of versatility, by seamlessly compiling a project into a print-ready book or an interactive presentation. All through an incredibly powerful Turing-complete extension of Markdown, ensuring...
Markdown is a text-to-HTML conversion tool for web writers. Markdown allows you to write using an easy-to-read, easy-to-write plain text format, then convert it to structurally valid XHTML (or HTML).
Markdown isn't used for web development
MEML is a Lisp-like markup language for web development that transpiles directly to HTML5. MEML has features like easier file imports, a developer environment tool (MLD), components that can be used on multiple pages, and more.
The ReAdABLE Human Format aims at Agile Documentation by making WRITING and READING document easier for End User and Developer alike, while allowing a high degree of flexibility.
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The ultimate result of using markdown is the conversion of it into valid HTML. It can't replace HTML and isn't an alternative standard to it, but it makes HTML easier to write.