SaaS Metrics
Gemini Executive Synthesis
WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities.
Technical Positioning
A simple, free, open-source utility that demystifies USB-C cable functionality by displaying charging wattage, data speed, display support, and Thunderbolt capabilities in plain English.
SaaS Insight & Market Implications
WhatCable addresses a pervasive consumer and professional frustration: the opaque and inconsistent capabilities of USB-C cables. The problem statement is clear: identical-looking cables with vastly different performance profiles. This utility provides immediate, actionable information by leveraging existing macOS system data, translating technical specifications into plain language. While a free, open-source tool, it highlights a market need for clarity and transparency in hardware ecosystems. The simplicity of its execution (menu bar app, no tracking) enhances its utility. This type of diagnostic tool, by solving a common "quality of life" problem, demonstrates the value of focused software solutions that enhance hardware usability, potentially reducing support inquiries and user confusion in broader tech environments.
Proprietary Technical Taxonomy
Raw Developer Origin & Technical Request
Hacker News
May 1, 2026
Show HN: WhatCable, a tiny menu bar app for inspecting USB-C cables
USB-C cables can be a mess. One cable charges at 5W, another does 100W 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.Built in Swift/SwiftUI. Open source, free, no tracking.GitHub: github.com/darrylmorley/what...
Developer Debate & Comments
Clean execution. The "tiny menu bar app" framing is exactly where I'm trying to land my own scope right now.What was the hardest thing you cut to keep it tiny? I keep adding "one more useful thing" and have to talk myself down.
Props to @sleepingNomad here, who has done 16 releases in the last 7 hours, incorporating feedback from HN on the fly!* Don't like menubar apps? you you can run it as a normal app* Don't like GUIs? Now you can run it on the command lineJust look at that Changelog:https://github.com/darrylmorley/whatcable/releases?page=2
I tried to contribute back adapter current Wattage display to stats, but I got my PR closed without comment. It is similar to this:https://github.com/exelban/stats/pull/3024
Thanks for creating this. I'm blind so the $16 USB tester off amazon to sort through my drawer of cables is not an option. This will stop me from needing to buy a sbc just so I have something running Linux to test cables.
I love that this is a native mac app. Thanks for building this, and thanks for sharing.
Cool. Just want to chime in that I wanted to see how quickly GPT-5.5 can turn this into a KDE Plasma 6 Plasmoid. Took about 10 minutes and two dollars, and now I have a nice QML app showing the same information in my taskbar.Just wanted to say this because I feel it's really crazy that I can just do this today...
This is pretty nice, but why do a lot of Mac apps insist on living in the menu bar?
I remember seeing a recent analysis where the vast majority of cables from Amazon misreported their capabilities. Is this tool going to be able to catch those, or blindly report what the chip advertises?
Doesn't work for me. Says "No USB-C ports detected", although I'm pretty sure my monitor is connected via USB-C, and the monitor also has a built-in USB hub where my USB keyboard is connected to.
can something like this be done for linux? maybe a wrapper for lsusb. I just found https://github.com/doug-gilbert/lsucpd which adds PD and more.
Frequently Asked Questions
Market intelligence mapped to WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities..
How is WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities. positioned in the market?
Based on our AI analysis of the original developer request, its primary technical positioning is: A simple, free, open-source utility that demystifies USB-C cable functionality by displaying charging wattage, data speed, display support, and Thunderbolt capabilities in plain English.
Are engineers actively discussing WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities.?
Yes, we have tracked 98 direct responses and active debates regarding this specific topic originating from Hacker News.
What are the foundational technologies related to WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities.?
Our proprietary extraction maps WhatCable, a macOS menu bar app for inspecting USB-C cable capabilities. to adjacent architectural concepts including USB-C cables, menu bar app, Mac, charging wattage.
Engagement Signals
Cross-Market Term Frequency
Quantifies the cross-market adoption of foundational terms like open source and Mac by tracking occurrence frequency across active SaaS architectures and enterprise developer debates.