
Codewars
Exercism
LeetCode
CodinGame
CodeCombat
HackerRank
Google's Python Class
CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.

Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Dotenv. While we know about 46 links to CheckIO, we've tracked only 1 mention of Dotenv.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | dotenv.org |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2021 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CheckIO yet.
Sync .env files. Stop sharing them over insecure channels like Slack and email and never lose an important .env file again.
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
No analysis of Dotenv yet.
Walkthroughs and reviews on video.
How often each product is chosen within a category, 0–100% relative to the other.


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


CheckiO is a platform with coding games created for different levels of programmers, from beginners to advanced levels. Using fun and engaging methods, you can use coding games to solve challenges in TypeScript and...
CheckIO is available in English and Spanish. The platform was designed by a group of engineers and now has a number of customers all over the globe who may use it to improve their programming speed and abilities by...
Checkio is the most whimsical HackerRank alternative on this list. It’s also focused on two languages: Python and TypeScript. On this site you’ll be thrown into a gamer’s paradise that includes robot mollusks and...
Dotenv makes working with .env files across a team and multiple environments a great experience. Very simple and easy to set up and easy to work with
Works smoothly without any issues and syncs env variables across different environments.
Recommendations tracked on public social media and blogs since March 2021.


Have you heard of CheckIO (https://checkio.org/)? They have a gameified "Mario world" of coding challenges that are smaller and come with more explanation, tests to guide you through edge cases and provide hints. The challenges start... Source: almost 3 years ago
Cyber isn't gonna be a light switch, where you can flip it and be good. Don't be too hard on yourself. Start with some hands on stuff like https://tryhackme.com or checkio.org. You could look at certs like Security+ or CySA+ for some... Source: about 3 years ago
Much better to get your hands dirty than watching the videos. Try: https://checkio.org/. Source: over 3 years ago
Dotenv — Sync your .env files, quickly & securely. Stop sharing your .env files over insecure channels like Slack and email, and never lose an important .env file again. Free for up to 3 teammates. - Source: dev.to / almost 4 years ago
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Download and solve practice problems in over 30 different languages.
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Practice and level up your development skills and prepare for technical interviews.
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