
JSON Formatter by: jackdalton.org
JSON Formatter Live
Javascript Beautifier
BeautifyTools
Code Beautifier
CodeBeautify
CodifyFormatter.org
Free formatter for JavaScript, JSON, React.js, HTML, CSS, SCSS, and SASS

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 Javascript Formatter. While we know about 46 links to CheckIO, we've tracked only 1 mention of Javascript Formatter.
Website, pricing, platforms and company facts side by side.
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| Website | javascriptformatter.com | checkio.org |
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What each product offers, as listed by its team.


No features have been listed yet.
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.
No Javascript Formatter videos yet. You could help us improve this page by suggesting one.
Intro Video. How to get maximum from CheckiO
How often each product is chosen within a category, 0–100% relative to the other.


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


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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...
Recommendations tracked on public social media and blogs since March 2021.


I wonder if non-commercial websites like [1] JavaScript Formatter are allowed under this trademark rule? Its two words and non-commercial so its fine? [1]https://javascriptformatter.com. - Source: Hacker News / about 1 year ago
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
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Practice and level up your development skills and prepare for technical interviews.
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