Lightpanda vs Traditional Browser Architecture
Interactive comparison: see what Lightpanda keeps and what it throws away
Full Browser
Lightpanda
Simulate Request
Reset
Kept by Lightpanda
Removed (not needed)
KEPT BY LIGHTPANDA
REMOVED (NOT NEEDED FOR MACHINES)
CDP Server
WebSocket / Port 9222
Browser Core
Zig Orchestrator
Network
libcurl
HTML Parser
html5ever (Rust)
DOM Tree
Zig (custom)
JavaScript
V8 Engine
MCP Server
AI Agent Interface
CSS Parser
Stylesheets
Style Calc
Cascade / Inherit
Layout Engine
Box Model / Flex
Paint
Draw Commands
GPU Composite
Layer / Raster
Image Decoder
PNG / JPEG / WebP
Font Renderer
Glyph / Metrics
Semantic Tree
Structured Output
XHR / Fetch
commands
HTTP req
HTML
tokens
Interactive Diagram:
Click "Lightpanda" to see what gets removed, or "Simulate Request" to trace a page load through the architecture.