
CodePen
CodeSandbox
replit
Pastebin.com
JS Bin
VS Code
GitHub
Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Coverity Scan
Checkmarx
GitLab
Appknox
SonarQube
AttackFlow
HCL AppScan
CodeSonar, produced by GrammaTech, is source and binary code analysis software that finds critical defects that can crash systems, result in unexpected operations, threaten security, and more.

Which is more popular?
Based on our record, JSFiddle seems to be more popular. It has been mentioned 204 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | jsfiddle.net | grammatech.com |
| Listed in |
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
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 JSFiddle and CodeSonar. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Test your javascript, CSS, HTML or coffeescript online with jsfiddle code editor. Jsfiddle – code playground.
JSFiddle cannot be used to host code on your server. The code has to be on JSFiddle and is public all the time.
What is missing from JSFiddle is live previews. You have to basically refresh the page by clicking on the play button. And compared to other playgrounds, JSFiddle is probably the slowest. Another slightly frustrating...
CodeSonar is a statistical code analysis tool that analyses the code from a computational perspective. It is able to develop models from your code, analyze them for potential execution threats like deadlocks, memory...
Recommendations tracked on public social media and blogs since March 2021.


Https://jsfiddle.net/ used to be also very popular, I see that it is still available, but haven't used it in a while. Which other alternatives do people use now days? - Source: Hacker News / about 2 months ago
Coding is like learning a new language—you must practice by writing code, not just reading about it. Use free online editors like CodePen, JSFiddle, or Replit to experiment. - Source: dev.to / about 1 year ago
As you embark on these projects, take your time to familiarize yourself with HTML tags and CSS properties. Use online tools like CodePen or JSFiddle to experiment with your code and visualize your results. - Source: dev.to / over 1 year ago
Tracking CodeSonar since Mar 2021.
When comparing JSFiddle and CodeSonar, you can also consider the following products.


Find and fix defects in your Java, C/C++ or C# open source project for free
Compare Coverity Scan to JSFiddle or CodeSonar:


The industry’s most comprehensive AppSec platform, Checkmarx One is fast, accurate, and accelerates your business.
Compare Checkmarx to JSFiddle or CodeSonar:

Code, create, andlearn together. Use our free, collaborative, in-browser IDE to code in 50+ languages — without spending a second on setup.
Compare replit to JSFiddle or CodeSonar:

Create, review and deploy code together with GitLab open source git repo management software | GitLab
Compare GitLab to JSFiddle or CodeSonar: