idblender.com is described as 'Secure your company WiFi and VPN in less than 1 hour. Get enterprise grade Cloud RADIUS. Compatible with Ruckus, Cisco, Ubiquiti, GSuite, O365, LDAP, Wireguard, and others'. There are three alternatives to idblender.com for Linux, Mac, Windows, Self-Hosted solutions and SaaS. The best alternative is FreeRadius, which is both free and Open Source. Other great apps like idblender.com are JumpCloud (Paid) and Foxpass (Freemium).
FreeRADIUS is responsible for authenticating one third of all users on the Internet. Welcome to the FreeRADIUS project, the open source implementation of RADIUS, an IETF protocol for AAA (Authorisation, Authentication, and Accounting).
Cloud-based directory services. Alternative to Microsoft Active Directory. Provides LDAP-as-a-Service, RADIUS-as-a-Service. Authenticates, authorizes, and manages employees, their devices and IT applications.