If you are considering NetBeans UML, you may also want to investigate similar alternatives or competitors to find the best solution. Other important factors to consider when researching alternatives to NetBeans UML include ease of use and reliability. The best overall NetBeans UML alternative is spring.io. Other similar apps like NetBeans UML are JHipster, Grails, Spark, and Apache OFBiz. NetBeans UML alternatives can be found in Java Web Frameworks but may also be in JavaScript Web Frameworks.
The Spring Framework is an application framework and inversion of control container for the Java platform.
JHipster is a development platform to generate, develop and deploy Spring Boot + Angular Web applications and Spring microservices.
A powerful Groovy-based web application framework for the JVM
Spark - A micro framework for creating web applications in Java 8 with minimal effort
Apache OFBiz is an open source product for the automation of enterprise processes that includes framework components and business applications for ERP (Enterprise Resource Planning), CRM (Customer Relationship Management), E-Business / E-Commerce, SCM (Supply Chain Management), MRP (Manufacturing Resource Planning), MMS/EAM (Maintenance Management System/Enterprise Asset Management), POS (Point Of Sale).
JUnit is a simple framework to write repeatable tests.
Build your web UIs in HTML or Java
Hibernate an open source Java persistence framework project.
The JavaScript App Platform
Apache Sling is an innovative web framework that is intended to bring back the fun to web development.