The type-safe web framework
for Java
Hilla is an open source framework that integrates a Spring Boot Java backend with a reactive TypeScript frontend. It works with React or Lit and helps you build business apps faster with type-safe server communication, included UI components, and integrated tooling.
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Type-safe server access
Simplify secure data access from the client. Create type-safe endpoint Java classes and let Hilla take care of the rest, no need to create a REST API. Calling a back-end method is as simple as calling an async TypeScript function.
UI components included
Save time with dozens of ready-made Vaadin web components that encapsulate rich functionality and work with React or Lit. Start with a beautiful base theme and customize it to meet your needs.
Fast and flexible
Hilla offers a zero-configuration toolchain for building web apps that combine both your front-end UI and Java stack in a single project. Choose from React or Lit for your frontend.
Full-stack & single deployment
Hilla offers a zero-configuration toolchain for building web apps that combine both your front-end UI and Java stack in a single project. Fetching data from the Java backend is straightforward, thanks to automatically-generated TypeScript code.
Simple type-safe server communication
Hilla simplifies full-stack app development with unique type-safe server communication.
- • Use autocomplete to quickly find APIs
- • Refactor with confidence: catch errors while developing, not in production
- •Automatic TypeScript type generation based on Java endpoints
public class Contact {
@NotBlank(message = "What's your name?")
private String name;
@NotBlank
@Email
private String email;
// Getters and setters
}
Shared validation rules for server and client
Hilla helps ensure data integrity by sharing validation rules across server and client.
- Define validation rules with Java bean validators
- The same rules apply to input fields in forms
- Hilla automatically re-validates the saved object on the server
- Lit only, React support coming soon.
Choose your frontend: React or Lit
Hilla supports two options for building your frontend: Lit and React.
- Compose views out of reactive components with declarative templates
- Explore backend APIs with autocomplete thanks to TypeScript
- Access the same library of UI components regardless of framework
@SpringBootApplication
@PWA(name = "Hilla App", shortName = "Hilla")
public class Application
extends SpringBootServletInitializer
implements AppShellConfigurator {
public static void main(String[] args) {
SpringApplication.run(Application.class, args);
}
}
Powered by Spring Boot
Hilla uses Spring Boot on the server. It means you can get started quickly and have access to the full power of the Spring ecosystem:
- Access your database easily with Spring Data.
- Secure your app with Spring Security.
- Deploy your app as a standalone JAR.
Components and tools included
Hilla helps you start fast and stay productive by including everything you need in one package.
- Dozens of UI components from combo boxes to complex grids.
- A customizable design system to match your brand.
- Figma design kit to help designers and developers work together.
- Unified front-end and back-end build tooling. Run the entire app with Maven.
Features to build faster
Here are some of the great features that give you a headstart.
Powerful forms
Hilla lets you share validations between server and client. Add bean validations on your Java objects and use them to validate input fields. Hilla will automatically re-validate on the server. Available for Lit. React Formik support is coming soon.
Stateless by default
Hilla apps are easy to scale because they are stateless by default. Stay performant and cost-effective no matter how much your business grows.
Secure endpoints by default
Access control features are enabled by default for all endpoint methods. Hilla uses Spring Security for securing your app.
Full-stack reactive
Build full-stack reactive apps with Hilla's support for reactive Flux and Mono data types in endpoints.
Autocompletion everywhere
Speed up development and browse APIs through auto complete. Hilla generates TypeScript types automatically based on your endpoint definitions.
Open Source
Hilla is hosted in a public GitHub repository where you can view, extend and modify the source code and report issues.
Productivity with Spring Boot
Hilla helps you be productive by seamlessly integrating with Spring Boot, the industry standard for building fast and secure enterprise Java apps. In addition, Maven and Vite are preconfigured to work together, while Live Reload lets you see the result of your code as you go.
Support available
Need enterprise-grade support? Choose from one of our commercial subscriptions to get access to expert support plus advanced components such as Charts, Grid Pro, Board, and more.
Customizable look and feel
The included Vaadin components expose their styleable parts, allowing them to be adapted to a custom design system. Built-in CSS custom properties make changing application-wide settings straightforward.
Modern web + modern Java =
We think Java web apps deserve some love. That's why we built Hilla, the modern web framework built specifically for Java backends.
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