Software Alternatives, Accelerators & Startups

CheerpJ VS BrowserStack

Compare CheerpJ VS BrowserStack and see what are their differences

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CheerpJ logo CheerpJ

The complete Java runtime for modern browsers. CheerpJ is the only solution that can run any large-scale, unmodified Java applications, applets, or libraries in the browser. No downloads or plugins are required.

BrowserStack logo BrowserStack

BrowserStack is a software testing platform for developers to comprehensively test websites and mobile applications for quality.
Not present

Run Java Applications on Modern Browsers

CheerpJ allows organizations to modernise their Java applications by making them usable from modern browsers, without needing a local JVM installation.

It has extensive compatibility with Java 8*, including file access, networking, clipboard, and many other system features. It is compatible with Java Swing, Oracle Forms, Oracle EBS, and any other framework or library. Other Java versions can be supported according to your needs.

*Tested on Oracle Forms, EBS, Swing, AWT and numerous frameworks and libraries.

Legacy Applications

CheerpJ allows organizations to preserve access to legacy Java applications (Applets, JNLPs, and stand-alone applications) by running them on the browser, without requiring a local JVM installation.

It is compatible with Java Swing, Oracle Forms, EBS, and other third-party frameworks.

With CheerpJ, you can remove the requirement for IE and Java on the client, and upgrade the accessibility and security of your application.

Modernise your Java Application to HTML5

With CheerpJ Organisations with products based on Java can migrate applications to HTML5 or the cloud with minimal or no effort, making them accessible from modern browsers, without a local Java installation.

CheerpJ allows a fully automated, full or partial migration of an existing Java client to a browser-based web application.

Integrate Java libraries into your web application

CheerpJ allows web developers to integrate Java libraries and components in native web applications.

CheerpJ is a browser-side JVM replacement in WebAssembly and supports seamless interoperability with HTML5/JavaScript.

  • BrowserStack Landing page
    Landing page //
    2025-05-06

BrowserStack is a leading software testing platform powering over two million tests every day across 15 global data centers. With BrowserStack, developers can comprehensively test their websites and mobile applications across 2,000+ real mobile devices and browsers in a single cloud platformโ€”and at scale. BrowserStack helps Tesco, Shell, NVIDIA, Discovery, Wells Fargo, and over 50,000 customers deliver quality software at speed.

CheerpJ

Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

BrowserStack

$ Details
freemium $29.0 / Monthly (Starts at single user plans and billed annually)
Platforms
Mac OSX Android Windows Browser Web iOS Google Chrome Firefox Safari REST API Internet Explorer
Release Date
2012 September
Startup details
Country
Ireland
State
Dublin
City
Dublin
Founder(s)
Nakul Aggarwal
Employees
500 - 999

CheerpJ features and specs

  • Browser Compatibility
    CheerpJ allows Java applications to run in any modern web browser without requiring plugins, making it easier to reach a wider audience.
  • Legacy Code Support
    It enables the preservation and usage of legacy Java applications by compiling them into JavaScript, providing a way to modernize outdated software.
  • Full Java SE Support
    CheerpJ supports the entire Java SE API, meaning most existing Java applications can be converted and run with minimal changes.
  • Security
    By executing Java applications in the browser, CheerpJ benefits from the browser's security model, potentially reducing vulnerabilities associated with running native Java code.
  • No Installation Required
    End users do not need to install Java or any other software, simplifying the deployment process and user experience.

Possible disadvantages of CheerpJ

  • Performance Overhead
    Running Java applications as compiled JavaScript in the browser may introduce performance overhead compared to native execution.
  • File Size
    The process of converting Java to JavaScript can result in larger file sizes, potentially leading to longer download times for users.
  • Complexity in Debugging
    Debugging Java applications compiled into JavaScript can be more complex than debugging standard Java applications.
  • Limited Native Integrations
    Since applications run in the browser environment, they may have limitations when interacting with local system resources compared to native Java applications.
  • Dependency on JavaScript Execution
    The effectiveness of CheerpJ is highly dependent on JavaScript execution performance and the capabilities of the target browser, which can vary across different environments.

BrowserStack features and specs

  • Cloud-based
  • Browser Extensions
  • SaaS

Analysis of BrowserStack

Overall verdict

  • Overall, BrowserStack is considered a highly effective and reliable tool in the web development and testing community. Its extensive features, real-device testing capabilities, and seamless integration make it a good choice for those needing comprehensive cross-browser testing solutions.

Why this product is good

  • BrowserStack is a robust and widely used web testing platform that provides developers with the ability to test their websites and applications across a vast array of browsers and devices. It offers real device cloud testing, ensuring that users can assess how their applications perform on actual devices rather than simulations. This makes it an invaluable tool for identifying and resolving cross-browser compatibility issues. Additionally, it integrates with popular CI/CD tools, enhancing the workflow efficiency for development teams.

Recommended for

  • Web developers
  • QA engineers
  • Agile development teams
  • Companies needing cross-browser testing across multiple devices
  • Teams looking for CI/CD integration in their testing process

CheerpJ videos

CheerpJ Demo

BrowserStack videos

BrowserStack Overview

More videos:

  • Tutorial - SpeedLab by BrowserStack
  • Review - SharePoint Team Finds BrowserStack Invaluable

Category Popularity

0-100% (relative to CheerpJ and BrowserStack)
Online Services
100 100%
0% 0
Website Testing
0 0%
100% 100
Game Engine
100 100%
0% 0
Browser Testing
0 0%
100% 100

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare CheerpJ and BrowserStack

CheerpJ Reviews

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BrowserStack Reviews

Other alternatives to Tuskr
BrowserStack lets you test your website or app on actual phones, tablets, and browsers so you see exactly how it will work in real life. It also includes some basic test management features.
Source: testpad.com
Top Selenium Alternatives
BrowserStack is another leading cloud-based testing platform that offers access to a vast array of browsers and real mobile devices. It's designed to simplify the testing process by allowing tests to run in parallel across different environments, significantly reducing the time needed for comprehensive testing. BrowserStack features include live, interactive testing,...
Source: bugbug.io
Why choose HeadSpin over BrowserStack?
Companies like HeadSpin and BrowserStack play a significant role in fulfilling the demand for testing on real devices and cross-browser devices. Their ability to test on real devices online and monitor digital experiences adds to the value proposition of organizations implementing testing solutions. However, every company has different requirements and here are a few reasons...
Source: www.headspin.io

Social recommendations and mentions

Based on our record, CheerpJ should be more popular than BrowserStack. It has been mentiond 20 times since March 2021. 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.

CheerpJ mentions (20)

  • A Linux-like kernel in a browser tab โ€“ deep dive in the BrowserPod architecture
    * CheerpJ (https://cheerpj.com): A WebAssembly JVM to run large scale Java apps unmodified. - Source: Hacker News / about 2 months ago
  • WASM 3.0 Completed
    The difference is that now it is cool. https://cheerpj.com/. - Source: Hacker News / 10 months ago
  • Announcing Logisim.app: Run the classic logic simulator in your browser
    Logisim.app is a complete 1:1 port of the classic Logisim application by Carl Burch. Itโ€™s based on version 2.7.2, the final release of the original Logisim. The original Logisim is a Java Swing application based on Java 5, and we run the full compiled JAR file directly in the browser using CheerpJ, a complete browser runtime for Java apps powered by WebAssembly. CheerpJ has full support for Swing applications,... - Source: dev.to / about 1 year ago
  • Modern Baby: A pioneering computer from Manchester
    You can play with an online simulator here: https://davidsharp.com/baby/online/index.html The simulator is originally written in Java, and the browser version is powered by CheerpJ, a WebAssembly-based JVM (https://cheerpj.com/). - Source: Hacker News / over 1 year ago
  • Chicory: A JVM native WebAssembly runtime
    Also https://github.com/mirkosertic/Bytecoder as well as the already mentioned (in some other comment) https://cheerpj.com/ most of them are still experimental, while CheerpJ offers Enterprise support (but it targets the browser). oh, and let's not forget j2cl https://github.com/google/j2cl. - Source: Hacker News / over 1 year ago
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BrowserStack mentions (8)

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What are some alternatives?

When comparing CheerpJ and BrowserStack, you can also consider the following products

CheerpX for Flash - its adobe flash player in webassembly

TestMu AI (Formerly LambdaTest) - Worldโ€™s first full-stack Agentic AI Quality Engineering platform.

OpenSilver - Open-source re-implementation of Silverlight on modern browsers using WebAssembly.

Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.

Hacker News Search - a faster hnsearch

CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.