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

Codacy
CodeClimate
codebeat
SonarQube
CodeAnt AI
CodeMeter
CodeRabbit
Automated code reviews with static analysis.

Which is more popular?
Based on our record, JSFiddle seems to be a lot more popular than DeepSource. While we know about 204 links to JSFiddle, we've tracked only 16 mentions of DeepSource.
Website, pricing, platforms and company facts side by side.
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| Website | jsfiddle.net | deepsource.com |
| Pricing | — | |
| Company | — | 2018 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of JSFiddle yet.
DeepSource helps you automatically find and fix issues in your code during code reviews, such as bug risks, anti-patterns, performance issues, and security flaws. It takes less than 5 minutes to set up with your Bitbucket, GitHub, or GitLab account. It works for Python, Go, Ruby, Java, and...
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.
Dashboard JSFiddle Online JavaScript Editor jQuery, Angular, Backbone, Underscore, Knockout, Y
More videos
How DeepSource works
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using JSFiddle and DeepSource. 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...
DeepSource, a comprehensive code review tool, offers detailed insights into code quality, security vulnerabilities, and productivity metrics. It empowers developers to identify and address potential issues early in...
DeepSource’s focus on reducing false positives and providing actionable insights could make it an attractive option for teams looking to improve their code review process and overall code health. But while DeepSource...
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
Navigate to deepsource.com in your browser. - Source: dev.to / 6 months ago
On the OpenSSF CVE Benchmark[1], Semgrep CE hits 56.97% accuracy vs our 81.21%, and nearly 3x higher recall (75.61% vs 26.83%). On when to run it, fair point. Autofix Bot is currently meant for local use (TUI, Claude Code plugin, MCP).... - Source: Hacker News / 9 months ago
Recently, there was a Java meetup held at work (Deepsource) where I gave my first ever talk, "How GraalVM improves Ruby". - Source: dev.to / over 3 years ago
When comparing JSFiddle and DeepSource, you can also consider the following products.


Automatically reviews code style, security, duplication, complexity, and coverage on every change while tracking code quality throughout your sprints.
Compare Codacy to JSFiddle or DeepSource:


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.
Compare CodeClimate to JSFiddle or DeepSource:

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 DeepSource:
