RaiDrive is a software application designed to mount cloud storage and NAS (Network Attached Storage) services as local or network drives on Windows and Linux, essentially treating them like a USB drive. This approach allows users to access, edit, and save cloud-based files directly within their operating system's file explorer without needing to sync large amounts of data to their local disk first.

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As of early 2026, there is no official standalone portable version of RaiDrive developed by its creator, OpenBox Lab. The standard version requires a full installation on Windows to register the necessary virtual file system drivers (such as WinFsp) required to mount cloud storage as local disks.  Why a "True" Portable RaiDrive is Difficult 

The Ultimate Guide to RaiDrive Portable: Your Cloud on a USB Stick

In the modern workflow, cloud storage is king. We juggle Google Drive, Dropbox, OneDrive, and SharePoint, often juggling browser tabs and sync clients to manage them. RaiDrive has long been a solution to this clutter, mounting these cloud services as local hard drives on your PC.

While there is no standalone portable RaiDrive app, here is how it fits into a portable workflow: Why It's Not Portable Driver Requirements

Currently, RaiDrive does not offer a portable version that can be run from a USB drive without installation. According to the developers, the software requires the installation of specific device drivers into the Windows operating system to function, making a true portable (no-install) version technically "impossible for now". RaiDrive Forum