The best alternatives to Beagle are FusionAuth, Virusdie, and AppTrana. If these 3 options don't work for you, we've listed a few more alternatives below.
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FusionAuth is the customer authentication and authorization platform that make developers' lives awesome. You'll get all the features your app needs like user registration, SSO, MFA, and more, plus a customizable, scalable solution you can run on any computer, anywhere in the world.
R2DTools allows you to secure your website with a certificate in a few clicks. R2DTools also helps keep track of the expiration date of the certificate. Email notifications will be sent if the certificate is about to expire.