Javalin Description

Classes are seldom extended and interfaces are infrequently implemented in Javalin. This framework is built upon Jetty and consists of only a few thousand lines of code, allowing it to match the performance of Jetty's native implementation. Its compact size makes understanding the source code straightforward. Unlike many other Java and Kotlin web frameworks, which typically provide separate versions for each programming language, Javalin has been designed with interoperability in mind, ensuring that applications can be developed similarly in both Java and Kotlin. Running on Jetty, one of the most widely used and reliable web servers available for the JVM, Javalin allows comprehensive configuration of the Jetty server, including support for SSL, HTTP/3, and all the features Jetty provides. While many lightweight web frameworks in Java and Kotlin lack OpenAPI support, Javalin includes this functionality, making it a more versatile option for developers. Consequently, Javalin stands out as a robust choice for building modern web applications efficiently.

Javalin Alternatives
Bitrise Reviews
Bitrise
(389 Ratings)
Streamline your development process while saving time, reducing costs, and alleviating developer stress with a mobile CI/CD solution that is not only swift and adaptable but also scalable. Whether your preference leans towards native development or cross-platform frameworks, we have a comprehensive solution that meets your needs. Supporting languages such as Swift, Objective-C, Java, and Kotlin, along with platforms like Xamarin, Cordova, Ionic, React Native, and Flutter, we ensure that your initial workflows are configured automatically so you can start building within minutes. Bitrise seamlessly integrates with any Git service, whether public, private, or ad hoc, including platforms like GitHub, GitHub Enterprise, GitLab, GitLab Enterprise, and Bitbucket, available both in the cloud and on-premises. You can easily trigger builds based on pull requests, schedule them for specific times, or set up custom webhooks to suit your workflow. Additionally, our workflows are designed to operate on your terms, enabling you to coordinate various tasks such as performing integration tests, deploying to device farms, and distributing apps to testers or app stores, ultimately enhancing your overall efficiency. With a flexible approach, you can adapt your CI/CD processes to meet the evolving demands of your development cycle.
Learn more
Source Defense Reviews
Source Defense
(7 Ratings)
Source Defense is an essential element of web safety that protects data at the point where it is entered. Source Defense Platform is a simple, yet effective solution to data security and privacy compliance. It addresses threats and risks that arise from the increased use JavaScript, third party vendors, and open source code in your web properties. The Platform offers options for securing code as well as addressing an ubiquitous gap in managing third-party digital supply chains risk - controlling actions of third-party, forth-party and nth-party JavaScript that powers your website experience. Source Defense Platform provides protection against all types of client-side security incidents, including keylogging, formjacking and digital skimming. Magecart is also protected. - by extending the web security beyond the browser to the server.
Learn more
GitBucket Reviews
GitBucket
GitBucket is a web platform for Git that is built using the Scala programming language. Additionally, you have the option to deploy the GitBucket WAR file to any servlet container that is compatible with Servlet 3.0, such as Jetty, Tomcat, or JBoss, among others. This flexibility allows for a range of deployment options tailored to various server environments.
Learn more
Ktor Reviews
Ktor
Developing asynchronous client and server applications can be a breeze, whether you're working on microservices or cross-platform HTTP client apps, all while keeping it open source, free, and enjoyable! Ktor is uniquely designed from the ground up with Kotlin and Coroutines, enabling you to harness a clear, multiplatform language along with the advantages of asynchronous programming in an easy-to-follow imperative style. With Ktor, you can select only the components you require and arrange your application according to your specific needs. Furthermore, extending Ktor with custom plugins is a straightforward process, allowing for added flexibility. Created by JetBrains, the minds behind IntelliJ IDEA, Kotlin, and other powerful tools, Ktor not only serves a wide array of customers but is also utilized internally within JetBrains itself. Plus, you’ll benefit from exceptional tooling support, making your development experience even more efficient and enjoyable! This combination of features makes Ktor an excellent choice for modern application development.
Learn more

Integrations

API:
Yes, Javalin has an API
View Integrations

Reviews - 1 Verified Review

Total
ease
features
design
support
See More Reviews Write a Review

Company Details

Company:
Javalin
Website:
javalin.io

Media

Javalin Screenshot 1
Javalin Screenshot 1 Javalin Screenshot 2
Recommended Products
Auth0 for AI Agents now in GA Icon
Auth0 for AI Agents now in GA

Ready to implement AI with confidence (without sacrificing security)?

Connect your AI agents to apps and data more securely, give users control over the actions AI agents can perform and the data they can access, and enable human confirmation for critical agent actions.
Start building today

Product Details

Platforms
Web-Based
Types of Training
Training Docs
Customer Support
Online Support

Javalin Features and Options

Javalin User Reviews

Write a Review
  • Name: Anonymous (Verified)
    Job Title: Developer
    Length of product use: 2+ Years
    Used How Often?: Weekly
    Role: User
    Organization Size: 1 - 25
    Features
    Design
    Ease
    Support
    Likelihood to Recommend to Others
    1 2 3 4 5 6 7 8 9 10

    Java friendly

    Date: Nov 04 2025

    Summary: Overall it is very fast in speed compare to 'FASTAPI' because it is in java.
    I can proudly say that people who want to create a 'APIS' in java but do not want to be a part of 'SPRING' than this is for them.

    Positive: Good for java developer who want to create there own project but do not want to integrate spring boot. It is fast and modern which is extremely fast.

    Negative: It may require some good knowledge of java before using it. you would doing many manual configurations most of the time but atleast not in 'XML'.

    Read More...
  • Previous
  • You're on page 1
  • Next