Parser parser = Parser.builder().build();
HtmlRenderer renderer = HtmlRenderer.builder().build();

String html = renderer.render(parser.parse("Hello world"));

<p>Hello world</p>

String markdown = """
# Welcome

This is a paragraph.
""";

String html = HtmlRenderer.builder().build().render(Parser.builder().build().parse(markdown));

String markdown = "Visit [OpenAI](https://openai.com) for **models**.";
String html = HtmlRenderer.builder().build().render(Parser.builder().build().parse(markdown));

String markdown = """
- First
- Second
""";

String html = HtmlRenderer.builder().build().render(Parser.builder().build().parse(markdown));

Set<Extension> extensions = Set.of(TablesExtension.create());

Parser parser = Parser.builder().extensions(extensions).build();
HtmlRenderer renderer = HtmlRenderer.builder().extensions(extensions).build();

String markdown = """
| Name | Value |
| --- | --- |
| One | 1 |
| Two | 2 |
""";

String html = renderer.render(parser.parse(markdown));

Set<Extension> extensions = Set.of(TaskListItemsExtension.create());

Parser parser = Parser.builder().extensions(extensions).build();
HtmlRenderer renderer = HtmlRenderer.builder().extensions(extensions).build();

String markdown = """
- [ ] Draft docs
- [x] Review docs
""";

String html = renderer.render(parser.parse(markdown));

Set<Extension> extensions =
    Set.of(
        StrikethroughExtension.create(),
        AutolinkExtension.create());

Parser parser = Parser.builder().extensions(extensions).build();
MarkdownRenderer markdownRenderer = MarkdownRenderer.builder().extensions(extensions).build();

String markdown = "This is ~~old~~ and https://openai.com";
String canonical = markdownRenderer.render(parser.parse(markdown));

Parser parser = Parser.builder().extensions(ExtensionDiscovery.load()).build();
Node document = parser.parse("""
# Title

Visit https://openai.com
""");

String html = HtmlRenderer.builder().extensions(ExtensionDiscovery.load()).build().render(document);
String text = TextContentRenderer.builder().extensions(ExtensionDiscovery.load()).build().render(document);
String canonical = MarkdownRenderer.builder().extensions(ExtensionDiscovery.load()).build().render(document);

Parser parser = Parser.builder()
    .includeSourceSpans(IncludeSourceSpans.ALL)
    .build();

Node document = parser.parse("Hello");

Extension strikethrough = StrikethroughExtension.builder()
    .requireTwoTildes(true)
    .build();

Extension autolink = AutolinkExtension.builder()
    .linkTypes(AutolinkType.URL)
    .build();

Set<Extension> extensions = Set.of(strikethrough, autolink);

Parser parser = Parser.builder().extensions(extensions).build();
HtmlRenderer renderer = HtmlRenderer.builder().extensions(extensions).build();

StringBuilder out = new StringBuilder();
HtmlRenderer renderer = HtmlRenderer.builder().build();
renderer.render(Parser.builder().build().parse("Hello"), out);

MarkdownRenderer renderer = MarkdownRenderer.builder()
    .nodeRendererFactory(context -> new MyMarkdownNodeRenderer(context))
    .build();