USB Descriptor Explorer
USB Descriptor Explorer is a free, open-source developer tool for Android. Inspect USB devices with full descriptor and HID details. It has 122 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.
github.com/iodn/android-usb-device-info (opens in a new tab)
About USB Descriptor Explorer
USBDevInfo (USB Descriptor Explorer) is an utility for inspecting USB devices with clear, structured details—built for debugging, validation, and reverse-engineering. Connect a device and view: - Vendor/Product IDs (VID/PID) with resolved names (when available) - USB version, speed, class/subclass/protocol - Configurations, interfaces, and endpoint breakdowns - Power hints (max power) - Input peripherals (keyboard/mouse) via Android InputManager With per-device permission granted, USBDevInfo can also retrieve advanced data such as: - String descriptors (manufacturer, product, serial, interface strings) - Descriptor tree parsed from raw descriptors - Device state (GETSTATUS /…
Privacy and F-Droid
F-Droid builds USB Descriptor Explorer from its published source code and flags anti-features such as ads, tracking or reliance on non-free services.
No anti-features flagged on the latest F-Droid build.
Screenshots
Screenshots from the app's F-Droid listing.
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What is USB Descriptor Explorer?
USB Descriptor Explorer is a free, open-source developer tool for Android. Inspect USB devices with full descriptor and HID details. It has 122 GitHub stars and is released under the GPL-3.0-only license, and you can install it from F-Droid and Google Play.
Is USB Descriptor Explorer free and open source?
Yes. USB Descriptor Explorer's source code is public on GitHub under the GPL-3.0-only license, which is OSI-approved or FSF-free. F-Droid, which builds it from source, flags no anti-features such as ads or tracking on its latest build.
How do I install USB Descriptor Explorer?
You can install USB Descriptor Explorer from F-Droid (package org.kaijinlab.usbdevinfo) and from Google Play; the links are on this page. Its GitHub repository also publishes releases (latest: v1.0.4).
Is USB Descriptor Explorer still maintained?
The repository's most recent commit was on Apr 16, 2026. Its F-Droid listing was last updated on May 2, 2026. appsgit only lists apps whose repository had a commit in the last six months.