Use-Fs – A React Hook for the File System Access API and OPFS
I'm happy to say that https://use-fs.com 2.0 has been released with brand new OPFS support. If you're building browser-based apps that heavily interact with the file-system this package is a must to have in your package.json! A React hook that watches a directory and re-renders when a file is added, changed, or deleted. Point it at a folder the user picked and you're reading and writing their real files — no uploads, no endless file dialogs New in 2.0: it watches the origin private file system too. No picker, no permission prompt, no user gesture — and, unlike File System API, it…
What it does
A React hook for the File System Access API and the origin private file system. Point useFs() at a folder on disk or at browser storage, and your component re-renders whenever a file is added, changed or deleted.
Point useFs() at a folder on your machine, or at the browser's own private storage. Your component gets everything inside it, and re-renders the moment a file is added, changed or deleted. No upload, no refresh, no second file dialog. A path the previous scan did not have. Filters run first, so a pruned directory never even gets enumerated. Same path, different bytes. Contents are only re-read when lastModified or size moved, so a steady tree costs no I/O. The path is gone. You still get its last contents, so you can archive it, undo it, or put it back. Both are a FileSystemDirectoryHandle underneath, so the same files map, the same filters and the same writeFile work against either. Watch…from use-fs.com
In the maker’s words, at launch
I'm happy to say that https://use-fs.com 2.0 has been released with brand new OPFS support. If you're building browser-based apps that heavily interact with the file-system this package is a must to have in your package.json! A React hook that watches a directory and re-renders when a file is added, changed, or deleted. Point it at a folder the user picked and you're reading and writing their real files — no uploads, no endless file dialogs New in 2.0: it watches the origin private file system too. No picker, no permission prompt, no user gesture — and, unlike File System API, it works in Safari and Firefox What's OPFS? A file store the browser gives each origin — real directories and files, but readable only by your own site through the File System API, never by the user's file manager or other apps.
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