One viewer for every file in your browser.

uDocumentViewer is a site of file viewers. PDFs, images, 3D models, spreadsheets, ebooks, archives, scientific data — over two hundred formats — each rendered locally in your browser.

Other tools upload your files, convert them on a server, and email you a link. We don't. Every viewer runs in your tab using JavaScript and WebAssembly. Files never leave the device.

The chrome stays the same across every format. The renderer for each format lives in its own module. Adding a new viewer means dropping in a single self-contained directory — no central spine to modify.

The visual language is editorial: a paper-and-ink canvas, hairline rules instead of shadows, sharp corners, mono uppercase labels, one electric-green accent doing the emphasis. Read like a printed page.