Speed Check
Download, upload, and latency against Cloudflare's edge. Big dial, run history.
network
Net Ping
HTTP latency pinger with live sparklines. Min, avg, max, jitter, loss — add your own targets.
network
Fetch Inspect
A mini curl -v: status, headers, timing breakdown, body preview — and CORS, explained when it bites.
http
ESM Package Viewer
npm registry meets esm.sh — versions, deps, weekly downloads, and copy-ready import lines.
packages
Bluetooth Scan
Web Bluetooth device explorer — GATT services, battery level, known-UUID decoder.
device
Device Info
Everything the browser will admit about your machine — hardware, graphics, network, battery, preferences.
device
Data Facets
Datasette-style facet browsing for any CSV or JSON. Filter, sort, drill in, export the slice.
data
EXIF Explorer
Drop a photo, read its hidden metadata — camera, lens, exposure, GPS. Hand-rolled EXIF parser.
by kmikeym