Auth0 by Okta and Keycloak serve different needs and have distinct features. Auth0 offers a comprehensive package with social login, bot detection, UI components, anonymous users, single-sign-on, MFA, and more. It is straightforward to integrate but comes with a cost, especially as the number of Monthly Active Users (MAUs) increases. The free tier covers up to 7,500 MAUs, but scaling to 20,000 MAUs can cost $1400/month. On the other hand, Keycloak is an open-source solution that supports single-sign-on and various identity providers like Google, Facebook, and GitHub through OpenID Connect or SAML 2.0. It is more suitable for developers who are comfortable with open-source platforms and can manage the deployment and maintenance themselves. Keycloak can be a cost-effective solution but may require more development effort compared to Auth0.

Auth0 by Okta is a B2C identity management solution that offers an all-in-one package including social login, bot detection, UI components, anonymous users, single-sign-on (SSO), and multi-factor authentication (MFA). The free tier includes 7,500 monthly active users (MAUs), but higher usage can become expensive, with 20,000 MAUs costing $1400 per month.

The main features of Auth0 by Okta include passwordless authentication, social login, multi-factor authentication (MFA), breach detection, brute-force protection, and extensive documentation and community support.

Pros of Auth0 by Okta include its support for passwordless, social, and multi-factor authentication, extensive documentation and community support, and built-in breach detection and brute-force protection. Cons include restrictions on active users and features in the free tier, and the higher cost of advanced tiers.

Keycloak is an open source identity and access management solution. It supports single-sign-on and integrates with OpenID Connect or SAML 2.0 Identity Providers such as Google, Facebook, and GitHub.

Keycloak offers several features including single-sign-on, identity brokering and social login, user federation, client adapters, and an admin console. It supports standard protocols like OpenID Connect and SAML 2.0.

Currently, there are no user-generated pros and cons for Keycloak. However, some general pros include its open source nature and extensive protocol support. Potential cons may include a steep learning curve for new users.

Organizations that require robust identity and access management solutions can benefit from Keycloak. It is particularly useful for companies needing to implement single-sign-on across multiple applications.