
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.

Microsoft PowerApps
Retool
ASP.NET Core
Stamplay
Angular.io
ASP.NET
B4X
An experimental web UI framework using C#/Razor and HTML, running in the browser via WebAssembly

Which is more popular?
Based on our record, CheckIO should be more popular than Blazor. It has been mentioned 46 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | blazor.net |
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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
No analysis of Blazor 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 Blazor. 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...
One advantage Blazor introduces comes around security-sensitive use cases. With .NET powering backend, client, and shared application logic, Blazor simplifies applying consistent security principles systemwide. The...
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
I’ve been working on a new website for my series CSharp in the Cards. I built this website in a way that was easy to maintain, flexible and most importantly would respond quickly to requests from visitors. I knew that Blazor with .NET 8... - Source: dev.to / over 2 years ago
Over the last few days we've been exploring JavaScript-based frameworks for building web apps. Today, we switch our attention to our amazing .NET community and talk about building Static Web Apps with Blazor. - Source: dev.to / over 4 years ago
Hi there. I'm the Program Manager at Microsoft for Blazor, so naturally I'm happy to make the Blazor pitch 😊. If you're comfortable already with JS/TS then it's understandable that Blazor might not have as strong an appeal. Blazor is... Source: almost 5 years ago
When comparing CheckIO and Blazor, you can also consider the following products.


Microsoft PowerApps provides tools to create, customize, share and run apps.
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Download and solve practice problems in over 30 different languages.
Compare Exercism to CheckIO or Blazor:


Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to CheckIO or Blazor:
