Open-source alternatives to Tink Java

Hutool is a standard utility library for Java application development designed to simplify common programming tasks and reduce boilerplate code. It provides a comprehensive collection of reusable helper classes and static utilities to streamline development across the Java ecosystem. The project implements a wide array of specialized toolkits, including systems for cryptography and security, network communication via HTTP and JSON clients, and the processing of office documents and file system IO. It also features a concurrency and scheduling framework for managing asynchronous tasks and recu

Easy to use cryptographic framework for data protection: secure messaging with forward secrecy and secure data storage. Has unified APIs across 14 platforms.

Keycloak is an open-source identity and access management server that provides a centralized platform for user authentication, authorization, and identity federation. It functions as a standards-compliant identity provider, utilizing a centralized engine to validate credentials and issue cryptographically signed tokens based on industry-standard protocols like OpenID Connect and SAML. This enables organizations to secure diverse applications and services through a unified authentication layer. The platform distinguishes itself through its cloud-native orchestration and high-availability capab