
CodePen
replit
JSFiddle
StackBlitz
GitHub
VS Code
JS Bin
Online playground for React

uBlock Origin
Adblock Plus
AdGuard
Privacy Badger
NextDNS
SponsorBlock
Ghostery
uMatrix: A point-and-click matrix-based firewall, with many privacy-enhancing tools.

Which is more popular?
Based on our record, CodeSandbox seems to be a lot more popular than uMatrix. While we know about 313 links to CodeSandbox, we've tracked only 5 mentions of uMatrix.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codesandbox.io | github.com |
| Pricing | — | |
| Company | Startup from The Netherlands · 1 - 9 employees · 2017 | — |
| 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.
A browser IDE that's actually GOOD? (CodeSandbox.io Review!)
More videos
How to use uMatrix to protect your online privacy & improve security | uMatrix tutorial
More videos
How often each product is chosen within a category, 0–100% relative to the other.


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


Codesandbox is an online code editor and prototyping tool that makes creating and sharing web apps faster. Codesandbox: Online code editor and ide for rapid web development.
CodeSandbox can be thought of as a much more powerful and complete take on JSFiddle. True to its name, CodeSandbox provides a complete code editor experience and a sandboxed environment for front-end development.
uMatrix is a matrix-based point-and-click firewall with plenty of exciting and secure privacy-enhancing tools. Users can point and click to allow as well as forbid any class of requests made by the browser that you...
Recommendations tracked on public social media and blogs since March 2021.


To begin, you can start creating your own react app using the command line or can directly go to CodeSandbox if you want to skip using the command line which is faster. CodeSandbox is an online code editor and prototype tool that speeds... - Source: dev.to / 5 months ago
To begin, you can create a react app using the command line or any code editor (e.g., VSCode). You can also try using CodeSandbox as an online code editor that is simple to use and allows you to deploy your code. - Source: dev.to / 5 months ago
If you are in a rush to open unknown repos, use GitHub Codespaces or codesandbox with Copilot or another AI integration to analyze the repo for malicious intent and to run it in a safe environment. - Source: dev.to / 11 months ago
You can upgrade the uBlock blocking mode to something better than what you are currently using, the Raymond Hill(or just gorhill)'s wiki explains how to do it. Https://github.com/gorhill/uBlock/wiki/Blocking-mode. Source: over 3 years ago
My mind immediately went to uMatrix or uBlockOrigin. Just want to note that, so far as I can tell, this is not associated with the author (gorhill) of those other tools: https://github.com/gorhill. - Source: Hacker News / over 4 years ago
I was feeling the same, just yesterday. Nothing but respect for gorhill. Source: over 4 years ago
When comparing CodeSandbox and uMatrix, you can also consider the following products.


Popular and efficient blocker for Chromium, Chrome, Edge, Firefox, Opera, Safari, Thunderbird.
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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 CodeSandbox or uMatrix:

AdBlock Plus is a browser extension for Firefox, Chrome, Opera, and several other popular browsers that prevents intrusive ads like pop-ups and malicious code from appearing on websites you visit.
Compare Adblock Plus to CodeSandbox or uMatrix:

Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
Compare JSFiddle to CodeSandbox or uMatrix:
