To find your tenant ID, you need to know which service you are using. Here are the steps to find your tenant ID for Microsoft Azure, Office 365, and Microsoft Entra:

Microsoft Azure and Office 365

1. Go to the website.
2. Enable JavaScript to run the app.
3. Enter your domain name to get your organizations Microsoft Azure and Office 365 tenant ID.

Alternatively, you can find your Microsoft 365 tenant ID in the Azure AD admin center:

1. Sign in to the .
2. Browse to Identity > Overview > Properties.
3. Scroll down to the Tenant ID section and you can find your tenant ID in the box.

Microsoft Entra

1. Sign in to the .
2. Browse to Identity > Overview > Properties.
3. Scroll down to the Tenant ID section and you can find your tenant ID in the box.

There is also a web-based tool called that you can use to query Azure AD for basic tenant information. Simply enter in the tenant name or the tenants GUID in the search box to get the tenant ID.