Auth0 by Okta offers a comprehensive, all-in-one package with features like social login, bot detection, UI components, anonymous users, single-sign-on, and multi-factor authentication. This can significantly simplify the developer's task by providing various out-of-the-box features. However, Auth0 can be relatively expensive, especially for applications with a large number of monthly active users. On the other hand, Lucia Auth is an open source library that works with any JavaScript runtime and integrates with various databases and ORMs. It offers flexibility and is fully typed, which can enhance the developer experience. The choice depends on whether you prioritize a comprehensive solution with many built-in features (Auth0) or a more flexible, open-source approach (Lucia Auth).

Auth0 by Okta provides a free tier with 7,500 monthly active users (MAUs), but it can become relatively expensive as your user base grows, costing $1,400 per month for 20,000 MAUs. Lucia Auth, being an open source solution, doesn't have a direct cost associated with its usage, but you may incur costs related to the infrastructure and database services you choose to integrate with it. Therefore, Lucia Auth may be more cost-effective in the long run, especially for smaller teams or projects that can manage their own infrastructure.

Yes, Lucia Auth offers better flexibility as it is an open source library that works with any JavaScript runtime, including Node.js, Bun, Deno, and Cloudflare Workers. It also supports integration with various databases such as MongoDB, PostgreSQL, MySQL, and SQLite, along with their respective ORMs and query builders. Auth0 by Okta is a comprehensive, all-in-one solution that offers many built-in features but may not provide the same level of flexibility for custom integrations or specific runtime environments.

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.

Lucia Auth is an open-source authentication library designed to simplify session management. It supports various JavaScript runtimes, including Node.js, Bun, Deno, and Cloudflare Workers, and is fully typed. The library integrates with databases such as MongoDB, PostgreSQL, MySQL, and SQLite, as well as their respective ORMs and query builders.

Pros of using Lucia Auth include being open source, fully typed, and its compatibility with any JavaScript runtime. As of now, there are no user-generated cons listed for Lucia Auth.