Jsoup is known for its robust HTML parsing capabilities, including its ability to handle invalid or poorly formatted HTML gracefully. When dealing with invalid HTML, Jsoup employs several strategies to parse and process the document as accurately as possible:

Tolerance for Errors : Jsoup is designed to be forgiving when encountering errors or inconsistencies in HTML markup. It attempts to interpret and process the HTML content even if it contains errors, missing tags, or other issues.

Tag Balancing : Jsoup automatically balances HTML tags during parsing. If it encounters an unclosed tag or a tag that is improperly nested, Jsoup attempts to correct the structure to ensure that the resulting document is well-formed.

Element Creation : When parsing HTML, Jsoup creates a Document Object Model (DOM) representing the structure of the document. It dynamically creates elements to represent HTML tags and their attributes, even if the tags are not well-formed.
Normalization : Jsoup normalizes the parsed HTML document to ensure consistency and coherence. This includes standardizing attribute names, removing unnecessary whitespace, and applying other transformations to make the document more structured and readable.

Error Reporting : Jsoup provides error reporting mechanisms to alert developers about any issues encountered during parsing. This may include warnings or exceptions indicating potential problems with the HTML content.

Option Configuration : Jsoup allows developers to configure parsing options to customize the behavior according to their requirements. For example, developers can specify whether to preserve or discard invalid tags, control how errors are handled, or adjust parsing settings to accommodate specific HTML structures.