Best 2 Zitadel Alternatives in 2026
Zitadel is a tool that manages who can log into your application and what they can do once inside. You can set it up to handle user accounts, control access to different features, and keep track of security events. Unlike building your own login system, Zitadel provides everything ready to use.
Zitadel
Appwrite
Appwrite
Appwrite is a backend platform that handles all the technical work behind your apps. Instead of building everything yourself, you get pre-made systems for common needs like storing user data, managing files, and handling authentication. Think of it as a toolbox filled with everything your app needs to work properly.
The platform works with many programming languages and frameworks, so you can use the tools you already know. You can add features like user sign-up, password recovery, database storage, and file uploads with just a few lines of code.
Appwrite can be installed on your own servers or used through their cloud service. Both options give you the same features, but self-hosting means you keep complete control over your data and how everything runs.
Supabase
Supabase
Supabase is a complete backend platform that gives you all the tools needed to build modern applications. At its core is a Postgres database, which is known for being stable and feature-rich. You can store data, create tables, and manage relationships without writing complex code.
Beyond the database, Supabase includes user authentication with support for email, social logins, and phone numbers. It also has file storage for images and documents, real-time features for live updates, and edge functions to run custom code. Everything connects through simple APIs that are automatically created from your database structure.
What makes Supabase different is that it is completely open-source. You can host it yourself or use their cloud service, and you never get locked into their platform.
