CENTRION / Browser engine

Slate Engine

An experimental browser engine in Rust, exploring HTML, CSS, layout, JavaScript, and rendering from the ground up.

  • Rust
  • SlaterMonkey
  • Rendering
Ask Centrion about Slate Engine

What is Slate Engine?

One of Centrion's most ambitious engineering projects: an independent, experimental browser engine built in Rust. Slate brings together custom HTML and CSS parsing, DOM and layout systems, SlaterMonkey JavaScript integration, network security policies, and offscreen rendering behind an inspectable engine API. Dedicated lifecycle, rendering, and conformance tests underpin an effort spanning language runtimes, graphics, and web standards. It demonstrates Centrion's ability to tackle the foundations of the web, from source markup to rendered pixels.

For developers and researchers interested in how browser engines turn web documents into pixels, and how the stages of that process fit together.

A closer look

Scroll to read ·Select an image to view full size
Slate Engine terminal session rendering three frames and verifying identical RGBA hashes.
Three deterministic frames rendered and verified through the engine CLI.
HTML and CSS fixture rendered by Slate Engine with sections about its rendering pipeline and deterministic output.
The resulting HTML and CSS frame, rendered directly by Slate Engine.

Inside Slate Engine

Document parsing and layout

Custom HTML and CSS parsing feeds DOM and layout systems, making the path from source markup to a laid-out document inspectable.

SlaterMonkey integration

SlaterMonkey scripting connects a JavaScript runtime to the engine pipeline alongside network security policies.

Rendering and engine testing

Offscreen rendering, lifecycle tests, and conformance tests support investigation of the engine through its API.

How it works

  1. Parse HTML and CSS into the engine’s document structures.
  2. Run layout and scripting through the engine pipeline.
  3. Inspect rendering output and exercise lifecycle and conformance tests.

Project status

Slate Engine is experimental browser-engine research. Development focuses on engine internals, rendering behavior, and web standards. For availability, documentation, or collaboration, contact Centrion.