DTCoreText

DTCoreText renders HTML into Core Text–backed attributed text on iOS, providing fine control over typography and inline content. It parses a practical subset of HTML/CSS and maps elements to attributed strings, handling fonts, colors, paragraph styles, lists, links, and embedded images or attachments. The layout engine uses Core Text framesetting to produce high-quality text rendering, including proper line breaking, kerning, and ligatures. Developers can plug in custom URL handlers, attachment loaders, and style overrides to adapt rendering to app needs. The library is particularly useful where NSAttributedString from HTML falls short or when you need consistent results across iOS versions. It also exposes hooks to measure, cache, and interact with text runs, making it suitable for rich article views, e-book readers, and mixed media content.