Lucia Auth might be a better choice for open source projects because it is itself an open source library. This allows for greater flexibility and customization. Additionally, being fully typed and compatible with any JS runtime, it can be seamlessly integrated into various environments. On the other hand, Stytch is a commercial product with a free starter plan, which might be suitable for projects that are looking for a managed service with a generous free tier.

Lucia Auth offers better integration with databases as it supports MongoDB, PostgreSQL, MySQL, and SQLite, along with their respective ORMs and query builders. This makes it a versatile choice for developers who need to work with different database systems. Stytch, on the other hand, does not specify its database integrations, focusing more on being a user-friendly alternative to Auth0 with a straightforward pricing model.

Lucia Auth could be more cost-effective for developers who prefer an open source solution that they can host and manage themselves, thus avoiding ongoing usage fees. Stytch, while offering a free starter plan that supports up to 25 organizations and 1000 members, charges $0.05 per additional monthly active user, which could add up depending on the scale of your user base.

Lucia Auth appears to be more developer-friendly for those who value open source software and need a solution that is fully typed and compatible with any JS runtime. This can simplify development and ensure type safety across the application. Stytch markets itself as a user-friendly alternative to Auth0, which might appeal to developers looking for a managed solution with less overhead in terms of setup and maintenance.

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.

Stytch markets itself as the leading Auth0 alternative. It offers a free starter plan that supports up to 25 organizations and 1000 members. Additional users cost $0.05 per monthly active user.

Stytch provides a free starter plan for up to 25 organizations and 1000 members. For additional users, the cost is $0.05 per monthly active user. It positions itself as a strong alternative to Auth0.

Currently, there are no user-generated pros and cons for Stytch. However, it is notable that Stytch offers a free starter plan and competitive pricing for additional users.