HTML to Markdown with Java

I am working on the same issue, and experimenting with a couple different techniques.

The answer above could work. You could use the jTidy library to do the initial cleanup work and convert from HTML to XHTML. You use the XSLT stylesheet linked above.

Unfortunately there is no library that has a one-stop function to do this in Java. You could try using the Python script html2text with Jython, but I haven't yet tried this!

There is a great library for JS called Turndown, you can try it online here. It works for htmls that the accepted answer errors out.

I needed it for Java (as the question), so I ported it. The library for Java is called CopyDown, it has the same test suite as Turndown and I've tried it with real examples that the accepted answer was throwing errors.

To install with gradle:

dependencies {
        compile 'io.github.furstenheim:copy_down:1.0'
}

Then to use it:

CopyDown converter = new CopyDown();
String myHtml = "<h1>Some title</h1><div>Some html<p>Another paragraph</p></div>";
String markdown = converter.convert(myHtml);
System.out.println(markdown);
> Some title\n==========\n\nSome html\n\nAnother paragraph\n

PS. It has MIT license