Cloudflare
cloudflare.com
The network in front of your site
from $20/moFree plan
Auth0
Identity as a service
Free plan availableSecurity & PrivacySince 2013
from $35/moVisit auth0.com
What Auth0 is
Authentication, authorisation, SSO and enterprise connections with extensive customisation. Okta-owned.
People use it to
Current offers
Free plan
Free plan, no card required
Ongoing free tier published by the vendor. Limits vary by plan.
Auth0 alternatives
Other tools in security & privacy that cover similar ground. Full comparison.