In Visual Studio, go to the Extensions menu > DevExpress > Your License Information .
: Licenses are per-developer, not per-machine. You are generally allowed to install the products on up to two machines (e.g., your office desktop and home laptop), provided you are the only one using them. The Exception: DevExtreme & JavaScript devexpress license key
Leaked keys found on "warez" sites often come bundled with installers that contain malware, backdoors, or ransomware. In Visual Studio, go to the Extensions menu
When moving beyond a single developer's machine to a shared environment: Confusion about client-side DevExtreme license validation In Visual Studio
This is done via the tool (installed with DevExpress products).