Best 20+ Tools for Technical Leads in 2025

Better Auth is a framework-agnostic authentication library that runs directly in your application. It handles user accounts, login sessions, and security features without relying on external services. You keep full control of your user data because everything runs on your own database and server.

Auth.js is a complete authentication solution that works across different JavaScript frameworks. It provides everything needed to add secure login systems to websites and applications. You can let users sign in through their existing accounts on services like Google or GitHub, or you can use email-based magic links, or even traditional username and password combinations.

Tesseral is a complete authentication system designed for business-to-business software applications. It handles user login, permission management, and security features so developers can focus on building their main product.

Ory is a complete identity management system that handles user authentication and access control for web and mobile applications. It combines several specialized tools that work together to protect your application and manage who can access what.

FusionAuth is a complete authentication system that manages who can access your application and what they can do. You can install it on your own computer, your company servers, or use their cloud service. This flexibility makes it different from most authentication tools that force you to use only their cloud.

Frontegg is a ready-to-use system that handles everything related to user accounts and access in your software. When you add it to your product, users get a professional login page, account settings, and security features automatically. It works like adding a pre-built module to your application.

Descope is a platform that handles all authentication and user management tasks for your application. You can build complete login systems using visual workflows, or integrate directly through code using their SDKs and APIs.

Auth0 is an identity and access management platform that handles user authentication and authorization for web and mobile applications. It works as a service that sits between your application and your users, managing who can access what.

Kinde is an all-in-one platform that handles authentication and user management for your applications. It lets you add secure login systems, manage user permissions, organize customers into groups, and track feature access all from one dashboard.

SlateDB is an embedded storage engine that uses a log-structured merge-tree design and writes everything to cloud object storage. You include it as a library in your Rust applications, and it handles data storage through services like S3 or Google Cloud Storage.