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What is wbe.rs?

delan/wbe.rs — explained in plain English

Analysis updated 2026-07-17 · repo last pushed 2023-02-25

★ 21RustAudience · developerComplexity · 4/5DormantSetup · moderate

In one sentence

An educational from-scratch web browser written in Rust that follows the Web Browser Engineering book, showing how HTML parsing, CSS styling, and page rendering work.

Mindmap

mindmap
  root((wbe.rs))
    What it does
      Downloads HTML CSS
      Parses HTML tree
      Applies CSS
      Renders page
    Tech stack
      Rust
    Use cases
      Learn browser internals
      Teach web fundamentals
      Study rendering pipeline
    Audience
      Developers
      Educators
    Status
      Work in progress
      Known rough edges

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Read the code to understand how a browser parses HTML into a structured tree.

USE CASE 2

Study how CSS rules get applied to decide colors, fonts, and layout.

USE CASE 3

Learn the full browser rendering pipeline by following along with the Web Browser Engineering book.

USE CASE 4

Use it as a teaching reference for explaining how browsers work under the hood.

What is it built with?

Rust

How does it compare?

delan/wbe.rsavelino/roam-tuidanilaa1/auditkit
Stars212121
LanguageRustRustRust
Last pushed2023-02-25——
MaintenanceDormant——
Setup difficultymoderateeasymoderate
Complexity4/53/53/5
Audiencedeveloperdeveloperops devops

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · moderate Time to first run · 1h+

Still in progress, redirects crash the browser and some keyboard navigation is unimplemented.

Copy-paste prompts

Prompt 1
Walk me through how this Rust browser parses raw HTML into a structured tree.
Prompt 2
Explain how wbe.rs applies CSS styling rules to decide layout and appearance.
Prompt 3
Show me how the asynchronous page loading works in this project so the UI doesn't freeze.
Prompt 4
Help me understand why the Enter key doesn't work in the address bar yet and how I'd fix it.

Frequently asked questions

What is wbe.rs?

An educational from-scratch web browser written in Rust that follows the Web Browser Engineering book, showing how HTML parsing, CSS styling, and page rendering work.

What language is wbe.rs written in?

Mainly Rust. The stack also includes Rust.

Is wbe.rs actively maintained?

Dormant — no commits in 2+ years (last push 2023-02-25).

How hard is wbe.rs to set up?

Setup difficulty is rated moderate, with roughly 1h+ to a first successful run.

Who is wbe.rs for?

Mainly developer.

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