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

Superhuman
InboxZero
Shortwave
Mimestream
Snailbox
FiloMail
Gmail
CMDK (previously known as Simplehuman) is a browser extension that brings advanced keyboard shortcuts and command bar to Gmail, and teaches how to use them as you use Gmail everyday ⚡️

Which is more popular?
Based on our record, CodeSandbox seems to be a lot more popular than CMDK for Gmail. While we know about 313 links to CodeSandbox, we've tracked only 1 mention of CMDK for Gmail.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codesandbox.io | cmdk.email |
| Pricing | ||
| Platforms | — | |
| Company | Startup from The Netherlands · 1 - 9 employees · 2017 | Startup from the United States · 1 - 9 employees · 2023 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeSandbox yet.
Use simpler keyboard shortcuts to navigate through email, archive, delete, switch between email in almost flow-state speeds. It brings the Superhuman shortcut experience right inside Gmail, without costing your $30/month. Features: 1. Superhuman shortcuts right inside Gmail - Esc, Snooze,...
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.
A browser IDE that's actually GOOD? (CodeSandbox.io Review!)
More videos
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeSandbox and CMDK for Gmail.
CMDK for Gmail's answer:
The only app out there which adds superhuman type keyboard shortcuts to Gmail, without the hefty price of $30/month.
CMDK for Gmail's answer:
I was a user of Superhuman for over 2 years and got tired of paying $30/month. I wanted the best features of Superhuman right inside Gmail, and thats when I started working on this browser extension.
CMDK for Gmail's answer:
Javascript, LLMs.
CMDK for Gmail's answer:
If you want to continue using Gmail but also want the Superhuman email experience.
CMDK for Gmail's answer:
We have executives from Reddit, Netflix, Microsoft, Flipkart using Simplehuman.
CMDK for Gmail's answer:
Small business owners, founders, executive assistants, sales reps. Anyone who uses email a lot in their day.
Share your experience with using CodeSandbox and CMDK for Gmail. 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 CMDK for Gmail 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 / 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 / 10 months ago
Simplehuman for Gmail is what I use. It's a light weight browser extension that makes Gmail work like Superhuman with the same keyboard shortcuts and natural language snooze. https://simplehuman.email. - Source: Hacker News / over 1 year ago
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