GuineaBrowser

Fast, lightweight, and adorable web browsing

Version 1.1.2 | Windows 10/11 | Free & Open Source

About GuineaBrowser

GuineaBrowser is a lightweight Chromium-based web browser built in C# using Microsoft WebView2. It is a fun guinea pig themed Chrome alternative designed for Windows 10 and Windows 11. GuineaBrowser focuses on low RAM usage, speed, and privacy, making it suitable for older PCs and multitasking users.

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Lightning Fast

Built on modern Chromium engine with optimized performance. Browse at incredible speeds without the bloat.

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Minimal RAM Usage

Uses significantly less memory than Chrome. Perfect for older PCs or multitasking power users.

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Password Manager

Built-in encrypted password storage with auto-fill. Your credentials are protected with Windows DPAPI encryption.

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Smart Bookmarks

Organize your favorite sites with our intuitive bookmark system. Quick access right from your homepage.

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Multi-Tab Browsing

Open multiple tabs and switch between them effortlessly. Clean, organized interface keeps you productive.

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Beautiful Design

Gorgeous guinea pig themed interface with smooth animations. Browsing has never looked this good!

System Requirements

Windows 10 (version 1809 or later) or Windows 11
64-bit processor and operating system
2 GB RAM minimum (4 GB recommended)
500 MB available disk space
Microsoft Edge WebView2 Runtime (auto-installed if needed)
Internet connection for browsing

Frequently Asked Questions

What is GuineaBrowser?
GuineaBrowser is a custom web browser built in C# using the Chromium engine through Microsoft WebView2.

Is GuineaBrowser open source?
Yes, GuineaBrowser is open source and available on GitHub.

How much RAM does GuineaBrowser use?
In testing, GuineaBrowser uses significantly less RAM than Google Chrome, especially with RAM saving mode enabled.

Is GuineaBrowser safe?
GuineaBrowser uses Windows DPAPI encryption for password storage and does not include built-in tracking.

Scroll to explore ↓

GuineaBrowser is a modern lightweight web browser alternative to Google Chrome, Microsoft Edge, and Mozilla Firefox. It is built in C# and designed to use less memory while providing fast browsing on Windows. Test system: Windows 11, 16GB RAM, 10 identical tabs loaded. Google Chrome used ~1.8 GB RAM. GuineaBrowser used ~320 MB RAM with RAM saving mode enabled.