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Understanding Chromium Architecture: A Simple Guide for Everyone

Siva
4 min readMar 4, 2025

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Have you ever wondered how your browser works behind the scenes? Whether you’re scrolling through social media, watching videos, or shopping online, the browser is doing a lot of heavy lifting to make your experience smooth and secure. One of the most popular browser engines powering this magic is Chromium (the foundation of Google Chrome, Microsoft Edge, and others). Let’s break down its architecture in simple terms with real-life examples!

1. Multi-Process Model: The Teamwork Approach

Imagine a restaurant kitchen. Instead of one chef doing everything, there’s a team: one chef for cooking, another for baking, and another for plating. Similarly, Chromium uses a multi-process model where each task is handled by a separate process.

  • Example: If you open multiple tabs, each tab runs in its own process. If one tab crashes (like a chef burning a dish), the others keep working smoothly.

2. Browser Process: The Manager

Think of the browser process as the manager of the restaurant. It doesn’t cook or serve but oversees everything: managing tabs, handling user inputs (like clicks), and coordinating network requests.

  • Example: When you type a website address, the browser…

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