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Wallaby.js VS CodePen

Compare Wallaby.js VS CodePen and see what are their differences

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Wallaby.js logo Wallaby.js

Wallaby.js runs your JavaScript tests immediately as you type and displays execution results in your code editor.

CodePen logo CodePen

A front end web development playground.
  • Wallaby.js Landing page
    Landing page //
    2023-07-26
  • CodePen Landing page
    Landing page //
    2018-09-30

Wallaby.js features and specs

  • Fast Feedback
    Wallaby.js provides immediate feedback by running tests as you type, allowing developers to identify and fix issues quickly.
  • Inline Code Coverage
    It displays code coverage information directly in the editor, helping developers see which lines of code are covered by tests and which are not.
  • Productivity Boost
    By automating testing processes and providing real-time results, Wallaby.js enhances productivity, allowing developers to focus more on writing code rather than managing tests.
  • Integration
    Wallaby.js integrates with popular IDEs like Visual Studio Code, JetBrains IDEs, and more, offering flexibility in various development environments.
  • Advanced Configuration
    The tool provides advanced configuration options, allowing developers to tailor the testing environment to suit their specific project needs.

Possible disadvantages of Wallaby.js

  • Cost
    Wallaby.js is a commercial product with a price tag, which might not be suitable for all developers or projects, especially open-source or hobby projects.
  • Complexity
    With its advanced features and options, there might be a learning curve for some developers, especially those who are new to such tools.
  • Resource Intensive
    Running continuous tests can be resource intensive, potentially slowing down the development environment on less powerful machines.
  • Limited Language Support
    Wallaby.js primarily supports JavaScript, TypeScript, and related frameworks, which may not be suitable for projects using other programming languages.
  • Environment Dependence
    Its full benefits are best experienced with supported IDEs, potentially limiting its utility in environments outside of those IDEs.

CodePen features and specs

  • Real-time Collaboration
    Developers can collaborate with others in real-time, making it easy to work on projects with teammates or seek help from the community.
  • Immediate Visual Feedback
    CodePen allows you to see the results of your code as you write it, which is highly beneficial for learning and debugging.
  • Integrated Development Environment (IDE)
    CodePen provides a comfortable and feature-rich online IDE environment with syntax highlighting, autocomplete, and more.
  • Community-Driven
    Users can share their work with the CodePen community, receive feedback, and explore a wide range of projects created by others.
  • Extensive Resources
    CodePen offers a wealth of examples and templates for various web development tasks, making it a useful resource for learning and inspiration.
  • Cross-Device Accessibility
    Being an online platform, CodePen can be accessed from any device with an internet connection, making it convenient for developers on the move.

Possible disadvantages of CodePen

  • Limited Offline Functionality
    Since CodePen is primarily an online tool, it requires an internet connection for most of its features to work, limiting its usefulness in offline environments.
  • Performance Constraints
    Complex or resource-intensive projects may not perform as well on CodePen as they would in a full-fledged local development environment.
  • Subscription Costs
    While many features are free, advanced functionalities and additional storage options require a paid subscription, which may not be ideal for all users.
  • Limited Backend Capabilities
    CodePen is primarily designed for front-end development, so it offers limited support for backend technologies, making it less suitable for full-stack or server-side development.
  • Dependency Management
    Managing dependencies and libraries can be cumbersome compared to local development environments which have better tools for this purpose, like npm.
  • Security Concerns
    Sharing projects with the public can expose your code and assets to unauthorized use, posing potential intellectual property and security risks.

Wallaby.js videos

+ Add

introduction to wallaby.js STEP1(make library as jQuery plugin)

CodePen videos

+ Add

What Is Codepen?

More videos:

  • Review - Learn to use CodePen from a co-founder of CodePen
  • Review - Using CodePen For Inspiration & Learning

Category Popularity

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User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Wallaby.js and CodePen

Wallaby.js Reviews

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CodePen Reviews

Best Forums for Developers to Join in 2025
Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Source: www.notchup.com
Top 10 Developer Communities You Should Explore
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepen’s focus on visual and interactive development makes it an excellent community for front-end developers and designers.
Source: www.qodo.ai
8 Best Replit Alternatives & Competitors in 2022 (Free & Paid) - Software Discover
Codepen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn.
Source: www.softwarediscover.com
Best Online Code Editors For Web Developers
Probably the most popular online code editor. CodePen is fast, easy to use, and allows a web developer to write and share HTML/CSS/JS code online.
Source: techarge.in
Top 25 websites for coding challenge and competition [Updated for 2021]
CodePen is a cool online IDE that allows you to write code in your browser and see the result just as you build it. CodePen challenges is a place for leveling up your skills by building things. Each week, new challenges appear for you to tackle, and the best “Pens” get picked.
Source: towardsdatascience.com

Social recommendations and mentions

Based on our record, CodePen seems to be a lot more popular than Wallaby.js. While we know about 503 links to CodePen, we've tracked only 7 mentions of Wallaby.js. 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.

Wallaby.js mentions (7)

  • Are there any continuous testing tools with real-time line-by-line IDE feedback for Rust?
    Basically I'm looking for https://wallabyjs.com/ for Rust. Source: about 2 years ago
  • Testing in ReScript
    Besides bindings for JavaScript libraries, there is rescript-test - a lightweight test framework written in ReScript for ReScript. I have heard that some people like it, but for me, it lacks coverage output and Wallaby support. - Source: dev.to / over 2 years ago
  • I'd like to use a REPL in my workflow for getting feedback on my code. Is this a reasonable ask? If not, how do you check your code as you go?
    I’m a Clojure(script) dev learning TS. My Clojure REPL flow is Cursive + IntelliJ. The closest equivalent I’ve found is https://quokkajs.com for inline evaluation and https://wallabyjs.com for test evaluation. Both are paid products but have free 30 day evaluation periods. Both work in IntelliJ and VsCode. Source: over 2 years ago
  • [AskJS] Current Issues with Jest Output and Workflow
    Https://wallabyjs.com/ covers pretty much every testing related needs for me. Source: about 3 years ago
  • jest package with highlighting results in window
    I recently switched from webstorm to emacs ( I'm super noob in emacs and lisp :) ) and one tool which I need was wallaby but unfortunately I didn't find anything like that for emacs. Source: about 3 years ago
View more

CodePen mentions (503)

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What are some alternatives?

When comparing Wallaby.js and CodePen, you can also consider the following products

WompMobile - WompMobile offers tow kind of functions – first creating new mobile apps and secondly converting the websites into mobile applications.

JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Oracle Mobile Application - Oracle Mobile Application framework or Oracle Mobile Application development platform is a hybrid mobile framework for rapidly developing single source applications for many platforms and devices.

CodeSandbox - Online playground for React

AppGyver Composer - Visual enterprise-grade low code mobile app builder

GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.

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