Software Alternatives, Accelerators & Startups

Opa VS Javalin

Compare Opa VS Javalin and see what are their differences

Opa logo Opa

Opa is an open source, simple and unified platform for writing web applications.

Javalin logo Javalin

Simple REST APIs for Java and Kotlin
  • Opa Landing page
    Landing page //
    2021-10-16
  • Javalin Landing page
    Landing page //
    2022-10-26

Opa videos

My food review at Opa of Greece!

More videos:

  • Review - Classic Game Room - OPA OPA review for Sega Mark III

Javalin videos

No Javalin videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Opa and Javalin)
Web Frameworks
32 32%
68% 68
Developer Tools
42 42%
58% 58
Javascript UI Libraries
100 100%
0% 0
Runtime
0 0%
100% 100

User comments

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Social recommendations and mentions

Based on our record, Javalin seems to be a lot more popular than Opa. While we know about 33 links to Javalin, we've tracked only 3 mentions of Opa. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Opa mentions (3)

  • Imba – The friendly full-stack language
    I remember Opa http://opalang.org/ tried something similar at the time when MongoDB was new and modern. - Source: Hacker News / 8 months ago
  • Ask HN: What web frameworks/technologies did not succeed as per your expectation
    We come across some web frameworks and technologies that we think will succeed, but they wither away as time passes by and don't succeed to the level we expected. Which web frameworks and or technologies did you come across that you thought would succeed but did not as per your expectations? For example, I thought that Opa Lang[0] and UrWeb[1] would succeed but did not, even though the ideas were sound. [0]... - Source: Hacker News / 10 months ago
  • Modern JavaScript:Everything you missed over the last 10 years(ECMAScript 2020)
    I think the Opa language was doing JSX-like code in the frontend before JSX http://opalang.org/ Both Opa and JSX were created in 2011. Opa had other innovations as well, such having the same code base run on both client and server (like Next.js). Unfortunately it didn't get traction and was abandoned by the creators. - Source: Hacker News / about 3 years ago

Javalin mentions (33)

  • Spark – A web micro framework for Java and Kotlin
    I'd recommend Javalin (https://javalin.io/) instead. Same idea, only executed better and it is actively maintained. - Source: Hacker News / 3 months ago
  • Spark – A web micro framework for Java and Kotlin
    SparkJava has an actively developed fork/successor called Javalin[1]. It's straightforward to convert from SparkJava to Javalin. The latter is written in Kotlin, but works fine with ordinary Java. While the rest of the Java world was devolving into annotation hell, AOP and other nightmares, these Java microframeworks showcased what happens when you forego legacy Java and leverage modern Java language features... - Source: Hacker News / 3 months ago
  • Show HN: Zero-dependency Java framework out of beta
    The size statistics page is super cool: https://github.com/byronka/minum/blob/master/docs/size_comparisons.md Aside from that, I've also had good experiences with Dropwizard - which is way simpler than Spring Boot but at the same time uses a bunch of idiomatic packages (like Jetty, Jersey, Jackson, Logback and so on): https://www.dropwizard.io/en/stable/ I do wonder whether Minum would ever end up on the... - Source: Hacker News / 8 months ago
  • Java 21 Released
    One of the most common web frameworks used is Spring Boot - here is their quickstart: https://spring.io/quickstart Newer alternatives are: https://micronaut.io/ and https://quarkus.io/ If you want to have something really simple look at Javalin: https://javalin.io/. - Source: Hacker News / 8 months ago
  • Helidon Níma is the first Java microservices framework based on virtual threads
    Counter-example: https://javalin.io/ uses Servlets, and seems to be doing quite fine without annotations. - Source: Hacker News / 9 months ago
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What are some alternatives?

When comparing Opa and Javalin, you can also consider the following products

Ruby on Rails - Ruby on Rails is an open source full-stack web application framework for the Ruby programming...

vert.x - From Wikipedia, the free encyclopedia

ASP.NET - ASP.NET is a free web framework for building great Web sites and Web applications using HTML, CSS and JavaScript.

Spark Framework - Spark Framework is a simple and lightweight Java web framework built for rapid development.

ember.js - A JavaScript framework for creating ambitious web apps

Micronaut Framework - Build modular easily testable microservice & serverless apps