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

Warp Terminal
Ghostty
tmux
Pi Coding Agent
Termius
Claude Code
Podium.do
To coding agents what tmux is to terminals. Runs where your agents run: close the laptop, ssh from anywhere, nothing dies.

Which is more popular?
Based on our record, CodeSandbox seems to be a lot more popular than Herdr. While we know about 313 links to CodeSandbox, we've tracked only 20 mentions of Herdr.
Website, pricing, platforms and company facts side by side.
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| Website | codesandbox.io | herdr.dev |
| 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
Herdr in about 6 minutes
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CodeSandbox and Herdr. 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.
We have no reviews of Herdr yet. Be the first one to post
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 / 6 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 / 6 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 / 12 months ago
Orca is next for me to trial https://www.onorca.dev/. - Source: Hacker News / 3 days ago
I use herdr to manage my pi sessions. My pi sessions can also use herdr to spin up other herdr sessions. I love tmux but the visual aspects of herdr work better for me. - Source: dev.to / 3 days ago
If you use herdr, tap Open in herdr on a task in the Pilothouse app and that agent appears in a herdr tab on the computer. - Source: dev.to / 4 days ago
When comparing CodeSandbox and Herdr, you can also consider the following products.


The terminal for the 21st century. Warp is a blazingly fast, rust-based terminal reimagined from the ground up to work like a modern app.
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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.
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A fast, feature-rich, and cross-platform terminal emulator
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Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.
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tmux is a terminal multiplexer: it enables a number of terminals (or windows), each running a...
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