Kelp is my attempt at putting together a semi-competent HTML and CSS rendering engine and using it to build a minimal web browser.

Much of the older HTML 4/5 and CSS 3 specification required for static webpages is implemented. This includes standard features such as flow layout, lists, tables, various selectors, media queries, etc. While clickable links are supported, other interactive features that require repainting such as hover CSS effects, forms, and scripting in general are not yet implemented.

Kelp relies on the JavaFX Canvas class to handle rendering text, images, and rectangles to its UI, and the standard HttpUrlConnection class for making GET requests for pages and their resources. The rest of the browser's pipeline, including HTML and CSS parsing, DOM tree creation, render tree creation, and box layout algorithms, is implemented within this codebase.

There are several features I plan to implement in the future that should unlock many of the more modern webpages, such as supporting CSS Flex and CSS Grid layouts.

A few sites rendered using Kelp: