# File Viewer Demo

> This is the official interactive demo for File Viewer by Flyfish, a browser-native, offline-first, self-hosted file preview project.

- Demo: https://demo.file-viewer.app/
- Official site: https://file-viewer.app/en/
- Stable project facts: https://file-viewer.app/en/browser-file-viewer/
- Documentation: https://doc.file-viewer.app/
- Source: https://github.com/flyfish-dev/file-viewer
- npm core: https://www.npmjs.com/package/@file-viewer/core

The current source registry maps 221 registered extensions (221 stable, 0 experimental) to 32 preview pipelines. Local files selected in the demo stay in the browser. Remote URL behavior depends on the source server's CORS policy.