The engine behind WebDecks

WebDecks isn't a wrapper around someone else's editor. The whole thing is a from-scratch rendering engine built to run natively in the browser — so opening and editing a presentation feels instant, even on modest hardware.

Built from scratch for the browser

Most web apps lean on a stack of heavy libraries. We went the other way: WebDecks is a purpose-built engine with a tight, data-oriented core, compiled to run directly in your browser. Nothing to install, nothing phoning home — it loads as a web page and runs locally.

Because the engine is ours end to end, we can keep the download tiny and the editing loop fast: it only redraws what actually changes, so it stays smooth while you work.

GPU-accelerated rendering

Your slides are drawn on the graphics card rather than laid out as web page elements. Text, shapes and images are composited on the GPU, which is what keeps scrolling, zooming and editing crisp and responsive.

The text rendering in particular is resolution-independent and sharp at any zoom level — fonts are rendered from their true outlines, not from pre-baked bitmaps.

Faithful PowerPoint open & export

WebDecks reads the real .pptx format and reconstructs your slides — text, layout, shapes and images — then renders them back out. The same engine powers a high-fidelity export path to PDF that aims to match what you'd get from desktop office software.

Licensing the engine

The pieces that make WebDecks work — the browser-native rendering engine and its components, including our high-fidelity PPTX-to-PDF rendering — are available to license for integration into other products.

If you need fast, accurate presentation rendering or PPTX-to-PDF conversion inside your own product, we'd love to talk.