Accelerate Time-to-Market
Why build from scratch?
Every AppJar ships the whole stack: JPA entities, DAOs, services and ready-made Vaadin views. Weeks of work become one dependency and a handful of properties.
Production-Ready Java Modules for Spring Boot and Vaadin
AppJars are enterprise-grade Java modules that plug into any Spring Boot and Vaadin app as Maven dependencies: a catalog that covers reporting, issue tracking, user management, AI support and more.
AppJars Features
Secure, scalable building blocks for enterprise Java applications
Seamless Java Integration
Built for the stack you trust.
Native Maven dependencies for Spring Boot, JPA and Vaadin. Add the artifact to your pom.xml and Spring Boot auto-configuration wires the module at startup. No code generation, no manual wiring.
Enterprise-Grade & Secure
Robust, tested, and secure.
Full source code included, for transparency and for debugging in your own IDE. Licenses are perpetual and validate offline, and one license file covers every environment of your application, including air-gapped deployments.
Accelerate Time-to-Market
Why build from scratch?
Every AppJar ships the whole stack: JPA entities, DAOs, services and ready-made Vaadin views. Weeks of work become one dependency and a handful of properties.
Seamless Java Integration
Built for the stack you trust.
Native Maven dependencies for Spring Boot, JPA and Vaadin. Add the artifact to your pom.xml and Spring Boot auto-configuration wires the module at startup. No code generation, no manual wiring.
Enterprise-Grade & Secure
Robust, tested, and secure.
Full source code included, for transparency and for debugging in your own IDE. Licenses are perpetual and validate offline, and one license file covers every environment of your application, including air-gapped deployments.
Featured AppJars
The modules Java teams add first to their Spring Boot and Vaadin applications
Full Bundle
Unlimited access to every AppJars module under a single license. Covers all current products and every new module released while your subscription is active.
AI Support
Integrate AI-powered support agents and chatbots into your app. Manage knowledge bases and streamline interactions between users, admins, and AI models.
Data Query
Turn stored queries into complete reporting screens without writing Java code or redeploying. Parameter forms, grids, charts, dashboards and printed reports, all generated from a query definition.
Start building today
Free tools to get AppJars into your project and into your AI coding assistant
Craft
Your next project, already wired.
Pick the AppJars you need and download a runnable Spring Boot and Vaadin 25 project with security, navigation and theme set up for them. It runs in your browser, with no account or license key.
Docs MCP Server
Your AI assistant, reading the docs.
Let Claude Code, Cursor, VS Code and other coding assistants search the official AppJars documentation while they work, so they use the real property keys instead of guessing them.
From the blog
News, guides and ideas from the AppJars team
Give your AI coding assistant the AppJars documentation
The AppJars Docs MCP Server lets Claude Code, Cursor, VS Code and other coding assistants search the AppJars documentation while they write your code.
Introducing Craft: start your next Java app with the parts already written
Craft is a free, browser-based generator that builds a runnable Spring Boot and Vaadin 25 project with the AppJars modules you choose already wired in.