twilco/kosmonaut

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1717 stars · 31 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

Kosmonaut is an experimental web browser engine written in Rust that parses HTML and a small subset of CSS, then performs layout and rendering via OpenGL. It is primarily a learning project and currently supports only very basic HTML/CSS, so most real-world web pages will not render correctly.

Use cases

• render simple HTML and CSS pages
• learn how browser engines work
• experiment with CSS layout engines in Rust
• study CSS cascade and box layout implementation
• run snapshot-based layout tests for a rendering engine

When to choose

• you want to study or contribute to a from-scratch browser engine in Rust
• you need to render only very simple HTML/CSS documents
• you are learning browser internals like DOM, CSS cascade, and layout

When to avoid

• you need a browser for everyday web browsing
• you need full modern CSS, JavaScript, or network support
• you need a production-ready rendering engine

Facets

application · maturity experimental

graphics parser web-development browser-extensions windows rust cross-platform browser-engine html css layout-engine opengl learning-project rendering-engine linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="twilco/kosmonaut")