// Largest HTML demos on the web

Where complexity becomes the feature

Most chess games chase bytes. We chase ambition. PieceHeap is a showcase platform for large, visually rich HTML demos that push what browsers can render without frameworks.

2,400+ Lines of HTML per demo
0 KB JavaScript on showcase pages
100% Pure HTML & CSS
// The philosophy
In a world optimized for minimal viable, we celebrate maximal possible.

While the industry races to compress chess engines into kilobytes, there's an untapped space for demos that explore the opposite: what happens when you let HTML breathe, when you use every element, when you build something that would make a code golfer wince but a design engineer stare.

Current Showcase

MVP DEMO LIVE

Chess Welcome Page

A single, self-contained HTML file showcasing visual complexity. No JavaScript frameworks, no external dependencies. Pure markup that renders an entire chess game's welcome experience.

2,847 lines 0 JS Single file

More Coming Soon

Each showcase demonstrates a different dimension of HTML ambition.

DOM Benchmarks

Performance metrics for rendering complex HTML structures.

01

Zero Dependencies

Every demo is a single HTML file. No npm, no build tools, no framework. Just open and experience.

02

Performance Metrics

Each showcase includes render time, DOM node count, and memory usage. Ambition with accountability.

03

Open Source Demos

Every showcase is available for study and remix. Learn by examining, not just by using.

The browser is more capable than we give it credit for. Let's prove it.

PieceHeap exists to challenge assumptions about web development's boundaries. Every demo is a question: what if we stopped optimizing for bundle size and started optimizing for wonder?