
ZeroFOX
Bolster
PhishEye
DoppelDown
AgentProxy.au
Red Points
Bustem
By pairing cutting-edge AI with expert analysis, we outpace threats like phishing, impersonation, and disinformation—delivering comprehensive coverage, speed, and precision.

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

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.
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| Website | doppel.com | jsfiddle.net |
| Platforms | — | |
| Company | Startup from the United States · 250 - 499 employees | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Our AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
No description of JSFiddle yet.
What each product offers, as listed by its team.


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.
Doppel: Outpacing What’s Next in Social Engineering
Dashboard JSFiddle Online JavaScript Editor jQuery, Angular, Backbone, Underscore, Knockout, Y
More videos
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Doppel.com and JSFiddle.
Doppel.com's answer
AI-native platform unifies threat intelligence, automates takedowns, simulates attacks, and trains employees against today’s most sophisticated multi-channel deception campaigns.
Share your experience with using Doppel.com and JSFiddle. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


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


Tracking Doppel.com since Jan 2026.
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 / 3 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 / over 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
When comparing Doppel.com and JSFiddle, you can also consider the following products.

ZeroFOX is a social risk management tool that enables organizations to identify, manage and mitigate social media based cyber threats.
Compare ZeroFOX to Doppel.com or JSFiddle:

Peer-to-peer texting at scale for campaigns + organizations
Compare Bolster to Doppel.com or JSFiddle:


AI phishing detection, typosquat & domain monitoring, and coordinated takedowns. PhishEye protects your brand across web, ads, social, and search — built for security, fraud, and brand protection teams.
Compare PhishEye to Doppel.com or JSFiddle:

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 Doppel.com or JSFiddle: