A Node.js library for communicating with USB devices, supporting both WebUSB and legacy APIs.
node-usb is a Node.js library that enables JavaScript applications to communicate with USB devices. It provides native bindings to the libusb library, allowing developers to enumerate, control, and transfer data to and from USB hardware directly from Node.js. The library solves the problem of accessing low-level USB devices in a high-level JavaScript environment.
Node.js developers building applications that need to interact with USB hardware, such as IoT devices, custom peripherals, or industrial equipment. It's also suitable for Electron app developers requiring USB access.
Developers choose node-usb because it offers both a modern WebUSB-compliant API and a stable legacy API, ensuring compatibility with existing code while embracing web standards. Its prebuilt binaries simplify installation, and active maintenance provides reliability for production use.
Improved USB library for Node.js
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Implements the full W3C WebUSB specification, providing a modern, standardized API for device enumeration and control, as evidenced by the detailed implementation status table in the README.
Offers both a legacy non-blocking API for backward compatibility and a modern WebUSB API for new projects, ensuring developers can choose based on their needs without sacrificing functionality.
Works on Windows, Linux, and macOS with prebuilt binaries and platform-specific setup instructions, reducing build issues and simplifying deployment across different operating systems.
Includes prebuilt binaries and clear packaging guidance for Electron applications, making it straightforward to use in desktop apps without recompilation hassles.
The library explicitly does not support isochronous transfers, which are critical for real-time data streaming applications like audio or video, limiting its use cases.
On Windows, users often encounter LIBUSB_ERROR_NOT_SUPPORTED and must manually install drivers using tools like Zadig, adding deployment overhead and potential compatibility issues.
Requires modifying udev rules and group permissions to access devices, which can be a barrier for non-administrator users and complicates production deployments.