Mundo Browser
Overview & Objective
A modern desktop web browser engineered from the ground up on .NET 10 and Microsoft WebView2. Designed for content-first immersion and strict local privacy: zero telemetry, local profile storage, in-process network filtering using compiled FrozenSet<string> domain lookups, and automated cookie consent dismissal. Features native dual-pane Split-View for side-by-side multitasking without multiple windows, and an intelligent EcoMode background tab discarder that reclaims up to 1.3 GB of RAM (19.4%) under heavy 35-tab sessions while maintaining 1.09% idle CPU consumption. Empirically validated across 10 hardware configurations against Chrome, Edge, and Brave.
1. Overview & Architectural Vision
Modern web browsers have become cluttered and heavy, burdened by continuous background telemetry, intrusive ad-trackers, cookie consent banners, and massive memory bloat. Mundo Browser provides an ultra-fast, minimalist alternative for productivity and research with four guiding pillars:
Content-First Immersion
Interface stays out of the way: sleek 4px scrollbars, retractable navigation and address bars (CTRL+E), and native Windows 11 Mica/Acrylic backdrops.
Built-in Multitasking
Native dual-pane Split-View lets users browse two pages side-by-side or stacked horizontally/vertically without managing multiple OS windows.
Privacy by Design
Strict local storage in %APPDATA%/MundoBrowser/WebView2Data. Zero remote analytics, zero tracking, and automated cookie banner dismissal.
Resource Discipline
EcoMode tab discarding unloads inactive memory while preserving page state for instant reloading upon focus.
2. Standardized Empirical Benchmark Matrix
To evaluate real-world performance, standardized automated benchmarks were recorded across 10 distinct physical hardware configurations (laptops to multi-core workstations) over 5 high-demand scenarios:
| Browser | Scenario | Tabs | Avg CPU (%) | Peak CPU (%) | Final RAM (MB) | Reclaimed RAM |
|---|---|---|---|---|---|---|
| Google Chrome | S1: 1 Tab (Idle) | 1 | 6.19% | 19.53% | 1,675.1 MB | 0 MB |
| Microsoft Edge | S1: 1 Tab (Idle) | 1 | 4.58% | 25.40% | 1,620.9 MB | 362 MB |
| Brave | S1: 1 Tab (Idle) | 1 | 3.42% | 12.85% | 1,638.4 MB | 42 MB |
| Mundo Browser | S1: 1 Tab (Idle) | 1 | 1.09% | 5.08% | 1,576.3 MB | 125 MB |
| Google Chrome | S2: 5 Tabs (Multitask) | 5 | 6.53% | 23.82% | 1,940.4 MB | 10 MB |
| Microsoft Edge | S2: 5 Tabs (Multitask) | 5 | 6.51% | 19.15% | 2,338.0 MB | 0 MB |
| Brave | S2: 5 Tabs (Multitask) | 5 | 4.75% | 18.60% | 2,120.5 MB | 48 MB |
| Mundo Browser | S2: 5 Tabs (Multitask) | 5 | 5.35% | 21.48% | 2,336.1 MB | 74 MB |
| Google Chrome | S3: 20 Tabs (Stress) | 20 | 12.23% | 36.72% | 4,073.5 MB | 309 MB |
| Microsoft Edge | S3: 20 Tabs (Stress) | 20 | 9.00% | 27.35% | 3,967.7 MB | 15 MB |
| Brave | S3: 20 Tabs (Stress) | 20 | 7.62% | 24.15% | 3,842.0 MB | 245 MB |
| Mundo Browser | S3: 20 Tabs (Stress) | 20 | 4.53% | 10.55% | 3,663.1 MB | 729 MB |
| Google Chrome | S4: 35 Tabs (Mega Sprawl) | 35 | 13.50% | 45.60% | 6,768.0 MB | 96 MB |
| Microsoft Edge | S4: 35 Tabs (Mega Sprawl) | 35 | 9.80% | 34.10% | 6,126.9 MB | 76 MB |
| Brave | S4: 35 Tabs (Mega Sprawl) | 35 | 8.85% | 28.70% | 6,190.0 MB | 185 MB |
| Mundo Browser | S4: 35 Tabs (Mega Sprawl) | 35 | 6.20% | 14.80% | 5,504.0 MB | 1,328 MB (19.4%) |
3. Key Analytical Findings
1. Idle Energy Efficiency: Mundo Browser records just 1.09% CPU utilization during idle operation (vs 6.19% on Chrome and 4.58% on Edge), significantly extending laptop battery autonomy. 2. Peak Load Containment: During heavy 35-tab concurrency, peak CPU spikes remained constrained at 14.80%, compared to 45.60% on Chrome and 34.10% on Edge, preventing OS stuttering. 3. Memory Recovery: EcoMode automatically reclaimed 1,328 MB of memory during peak sprawl, keeping active system memory responsive.
Engineering Artifacts & Diagrams
Click any diagram or visual artifact to examine in high resolution.
Mundo Browser Benchmark Summary
Empirical resource comparison across 10 hardware configurations evaluating Average CPU, Peak CPU, Final RAM, and Reclaimed Memory against Chrome, Edge, and Brave.
Key Engineering Highlights
Native Dual-Pane Split-View
Browse two pages side-by-side or stacked in a single window without juggling multiple windows, backed by persistent session state restoration and custom search engines.
In-Process Ad Blocker & Clean Web
Network interception powered by compiled .NET 10 FrozenSet<string> domain lookup for zero-latency filtering, coupled with automatic cookie modal removal and zero remote telemetry.
EcoMode Background Memory Manager
Intelligently suspends idle background tabs to reclaim up to 1,328 MB of RAM (19.4% allocation) during heavy 35-tab sessions, with built-in audio playback and download protection.
Empirical Hardware Benchmarking
Automated PowerShell benchmark harness measuring CPU and memory across 10 machines, achieving 1.09% idle CPU footprint and peak spike containment under 15% during heavy concurrency.
Execution & Quickstart Commands
git clone https://github.com/PLRpower/mundo-browser.git
cd mundo-browser
dotnet build MundoBrowser/MundoBrowser.csproj -c Releasedotnet run --project MundoBrowser/MundoBrowser.csproj -c Releasepwsh -ExecutionPolicy Bypass -File scratch/run_full_fixed_benchmark.ps1