Tor Browser is inherently portable by design, meaning the standard version provided directly by the Tor Project can run straight from a USB flash drive or any local folder without a traditional system installation. While third-party wrappers like Tor Browser Portable on PortableApps.com exist to integrate with custom launcher menus, the official bundle functions completely standalone. It isolates your web activity, masks your IP address, and leaves no personal data trace on the host machine’s operating system. Core Anonymity Features
The browser is a heavily customized, security-hardened version of Mozilla Firefox pre-configured with vital privacy enhancements: Tor Project | Anonymity Online