Best 20+ Tools for Software Engineers in 2025

Cryptr is an authentication tool that connects business applications to enterprise identity systems. When a software company uses Cryptr, their customers can log in using their company credentials instead of creating new passwords.

PropelAuth is a tool that adds user authentication to your business software. It provides ready-made login pages, signup forms, and user management screens that you can customize with your brand colors and logo.

Authentik is a tool that manages how users sign in to your applications and services. Think of it as a central security checkpoint that verifies who someone is before letting them access your systems.

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.

Casdoor is a complete identity management solution that handles user authentication and authorization for your applications. It supports OAuth 2.0, OpenID Connect, SAML, CAS, and LDAP protocols, making it compatible with almost any application or service.

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.

Ping Identity is a complete security platform that manages who can access your business applications and data. It acts as a gatekeeper, checking user identities before allowing access to sensitive information. When someone tries to log in, Ping Identity verifies they are who they claim to be using various methods like passwords, phone authentication, or fingerprints.

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.