Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables

Source: Hacker News

Overview

USB‑C cables can be a mess. One cable charges at 5 W, another does 100 W and Thunderbolt 4, and they look identical in the drawer. WhatCable sits in your menu bar and reads the cable data your Mac already has access to. Plug in a cable and it tells you in plain English what it can actually do: charging wattage, data speed, display support, Thunderbolt, etc.

Features

• Displays charging wattage
• Shows data transfer speed
• Indicates display support
• Detects Thunderbolt capability

Technical Details

• Built with Swift / SwiftUI
• Open‑source, free, and contains no tracking

Source Code

GitHub – whatcable

Discussion

Comments on Hacker News – 87 points, 20 comments