
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.

TryHackMe
Hack The Box
VulnHub
PwnTillDawn Online Battlefield
HackThisSite
CodeRed by EC-Council
LetsDefend
Learn all about web hacking through online courses spanning the basics to advanced vulnerabilities

Which is more popular?
Based on our record, CheckIO should be more popular than PentesterLab. 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 | pentesterlab.com |
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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 PentesterLab yet.
Walkthroughs and reviews on video.
Intro Video. How to get maximum from CheckiO
THIS IS WHY YOU SHOULD GET A PENTESTERLAB PRO SUBSCRIPTION!
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and PentesterLab. 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...
We have no reviews of PentesterLab yet. Be the first one to post
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
Learning Websites: PortSwigger Web Security Academy - Free, comprehensive web security training. I recommend PortSwigger Academy if you are starting out. Bugcrowd University - Free educational resources for bug bounty hunters.... - Source: dev.to / over 1 year ago
For pentesting, look at the below: - https://portswigger.net/web-security - https://pentesterlab.com/ - https://www.hackthebox.com/. Source: over 3 years ago
These codes can be useful in different situations. A good site to test out different types of attacks and recon is: http://pentesterlab.com (mind it has a premium subscription plan but u can use it free). Source: about 4 years ago
When comparing CheckIO and PentesterLab, you can also consider the following products.


TryHackMe is an online platform for learning and teaching cyber security, all through your browser.
Compare TryHackMe to CheckIO or PentesterLab:

Download and solve practice problems in over 30 different languages.
Compare Exercism to CheckIO or PentesterLab:

An online platform to test and advance your skills in penetration testing and cyber security.
Compare Hack The Box to CheckIO or PentesterLab:

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

VulnHub provides materials allowing anyone to gain practical hands-on experience with digital security, computer applications and network administration tasks.
Compare VulnHub to CheckIO or PentesterLab: