Nicheloom

Market intelligence for builders — see what's gaining traction before it's crowded.

Use-Fs

A React Hook for the File System Access API and OPFS

Details

External ID
49441831
Source
HN
Company
—
Product
Use-Fs
Website domain
use-fs.com
Launched
Aug. 25, 2026
Cohort
—
Upvotes
5
Upvotes percentile
0.12634408602150538
Tags
—
Fetched at
Sept. 10, 2026, 5:32 a.m.
Updated at
Sept. 10, 2026, 5:32 a.m.

Description

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 dialogsNew 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 FirefoxWhat'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.

Enrichment

Theme
file transfer and sharing tools
Vertical
Horizontal
Function
Dev tools
Audience
Developer
AI stance
Not AI
Project type
Hobby / open-source project
Normalized one-liner
react hook for file system access api
Manually corrected
False

Could you build this?

Yes Use-Fs is an open-source React hook wrapping the standard browser File System Access API and Origin Private File System (OPFS), perfectly suited for AI-assisted coding.

Discussion

No comments on this launch.

Competitors

Other products that read as similar to this one — 74 launches clear the similarity bar, closest 8 shown.

Attention rank: #70 of 75 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).

Launched 286 days after the earliest competitor.

Other launches for this product

Same idea, different domain

Nobody's really built a dev tools tool for Sales yet.