Developer Tools

use-fs

Last updated 2026-08-26 · benchmark measured 2026-08-26 — deterministic & reproducible

React hook for watching local folders and browser storage via the File System Access API.

Is use-fs production-ready?

Legit.Show scores use-fs 69 out of 100 — the simple average of its 7 measured frames. Legit.Show ran its deterministic 7-Frame production-readiness benchmark on use-fs (public-surface assessment), measured from the public surface with no LLM in the scoring path. Its strongest frame is Accessibility; its weakest is Privacy. Every frame it averages is published with its evidence on the Legit.Show listing.

The 7 Frames

• Performance — 83/100
• Accessibility — 96/100
• Security — 45/100
• Privacy — 25/100
• Reliability — 92/100
• Standards — 85/100
• Discoverability — 60/100

What we measured

• Security headers present: HSTS.
• No Content-Security-Policy.
• Served over HTTPS with a valid certificate.
• Real Lighthouse performance run — 162 ms to first byte.
• Returns a proper 404 for unknown routes.
• 0 of 0 sampled routes reachable.
• No privacy policy found.
• Sets cookies / loads scripts with no consent prompt.

Who built it

Tim Mikeladze (@linesofcode)

Who it's for

React developers · Web app builders · File management app creators · Code editors · Browser-based tools

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