Cognitive Load Visualizer

About

Cognitive Load Visualizer helps designers, developers, and researchers understand how mentally demanding a webpage is. It analyzes any site in real time and generates a science-backed cognitive-load score based on visual complexity, interaction density, and layout structure. A heatmap highlights the areas that require the most mental effort, making usability issues easy to spot before they frustrate users.

Key Features
• Instant Cognitive Load Score: Clear 0–100 rating based on cognitive science principles.
• Real-time UI Analysis: Measures DOM depth, layout complexity, and interactive element density.
• Heatmap Overlay: Visualizes high-load regions at a glance.
• CLT-Based Evaluation: Grounded in Cognitive Load Theory, visual search research, and working-memory limits.
• One-Click Re-Analysis: Quickly evaluate design changes or updates.
• Privacy-Preserving: All processing happens locally—no data is sent or stored anywhere.

Why It Matters
Cognitive overload is a major source of user frustration. This tool helps you identify:
• Confusing layouts
• Cluttered or dense interfaces
• Unnecessary interaction complexity
• Poor visual grouping or hierarchy
• Split-attention effects
Ideal for UX designers, developers, product teams, accessibility reviewers, and HCI students.

How It Works
1. Open any webpage
2. Click the extension
3. View the cognitive-load score and metrics
4. Optionally enable the heatmap overlay
5. Re-analyze as you iterate on designs
Evaluates: DOM depth, interactive element density, layout fragmentation, visual grouping, and attention-switching demands.

Privacy
No data is collected, transmitted, or stored.
All analysis runs entirely on your device.