I made a visualizer for Hugging Face models
Paste a Hugging Face URL to see an interactive visualization of any model's architecture.
A Reddit user, /u/Course_Latter, launched hfviewer.com, a lightweight web tool that generates interactive visualizations of Hugging Face model architectures. Simply paste any model URL—like Qwen/Qwen3.6-27B—and the tool renders a clean, clickable diagram showing layers, tensor shapes, and flow. It uses the model's configuration to map the structure, making it easy to see how transformers, attention heads, and feed-forward networks are organized without reading source code.
What sets hfviewer apart is its family comparison mode: paste a model family page (e.g., family/gemma-4) to view multiple models side-by-side. This allows quick visual diffs of architectures across sizes or variants. Currently free and running on minimal infrastructure, the tool fills a gap for researchers, students, and engineers who want to grasp model design at a glance. The creator is actively soliciting feedback for improvements, suggesting rapid iteration ahead.
- Paste any Hugging Face model URL for instant, interactive architecture visualization
- Supports side-by-side comparisons of model families like Gemma 4 for easy diffing
- Built by Reddit user /u/Course_Latter; currently free and open for feedback
Why It Matters
Demystifies model architecture for non-experts, speeding up research education and model comparison without code.