
JSFiddle
CodeSandbox
GitHub
replit
VS Code
Pastebin.com
JS Bin
A front end web development playground.

CodeClimate
ESLint
Codacy
SensioLabs Insight
SonarQube
CodeFactor.io
Source-Navigator NG
JSLint is a JavaScript program that looks for problems in JavaScript programs.

Which is more popular?
Based on our record, CodePen seems to be a lot more popular than JSLint. While we know about 513 links to CodePen, we've tracked only 5 mentions of JSLint.
Website, pricing, platforms and company facts side by side.
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| Website | codepen.io | jslint.com |
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What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
{"teams" => "Development teams who need consistent coding standards across a project can benefit from JSLint’s strict conventions.", "projects" => "Projects that require high code quality and adherence to standards might find JSLint beneficial.", "beginner_developers" => "JSLint can help beginners learn good coding practices by highlighting problematic code patterns and suggesting improvements."}
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodePen and JSLint. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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.
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...
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.
We have no reviews of JSLint yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


> I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / about 1 month ago
Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 2 months ago
Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 11 months ago
Absolutely - one for the great minds to play with while running in great circles and one that passes https://jslint.com and is allowed to be on the internet. - Source: Hacker News / almost 2 years ago
UPDATE 8/22/2011: found http://jshint.com, it looks much better than http://jslint.com/. Source: over 4 years ago
Use https://jslint.com to find the unescaped quote or whatever that's invalidating the file. Remember to put quote marks in dialogue as \". Source: over 4 years ago
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Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.
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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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Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
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