# 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 266 registered extensions (224 stable, 42 experimental) to 45 preview pipelines. Local files selected in the demo stay in the browser. Remote URL behavior depends on the source server's CORS policy.