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Show HN: I built a small browser engine from scratch in C++

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Built a small browser engine in C++ to understand how browsers render HTML to the screen.

Implemented core structures: HTML/CSS parsing, layout calculation, and rendering from scratch.

This is a learning-focused project, not a production browser.

Introduction

Hello, I'm a korean high school senior (Grade 12) planning to major in Computer Science.

I wanted to understand not just how to use technology, but how it works internally. I've built several websites with HTML, CSS, and JavaScript, but I never really understood how the browser executing this code actually works.

"How does a browser render HTML to the screen?"

To answer this question, I spent about 8 weeks building a browser engine from scratch.

C++ was entirely new to me, and I struggled with countless bugs, but I eventually completed a small browser that can parse HTML, apply CSS, and render images. While not perfect, it was sufficient to understand the core principles of how browsers work.

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