
Codecademy
Exercism
LeetCode
Treehouse
edX
Coursera
Udemy
Achieve code mastery through challenge.

Device-Test
DeviceCheck HQ
Keyboard Tester Pro
Full Keyboard Test
HardwareTestingPro
HardwareTest.org
inputprobe Keyboard Tester
Free Browser Diagnostic Center with 32 focused tests for displays, keyboards, mice, controllers, audio, cameras, and other browser-visible device behavior.

Which is more popular?
Based on our record, Codewars seems to be more popular. It has been mentioned 160 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | codewars.com | devicemetrik.com |
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In their own words, as submitted to SaaSHub.


No description of Codewars yet.
DeviceMetrik is a free browser diagnostic center with 32 focused tools for testing displays, keyboards, mice, controllers, microphones, speakers, webcams, and other browser-visible device behavior without installing software. It also provides symptom-based routing and guided checks while clearly...
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
Codewars is recommended for beginner to advanced programmers who enjoy learning through practice and are interested in improving their algorithmic thinking and coding skills in a gamified environment. It is particularly beneficial for those preparing for coding interviews or seeking to reinforce their programming knowledge in a fun and interactive way.
No analysis of DeviceMetrik yet.
Walkthroughs and reviews on video.
Codewars Review & Tips
More videos
No DeviceMetrik videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Codewars and DeviceMetrik.
DeviceMetrik's answer:
DeviceMetrik combines 32 focused browser-based tests with symptom routing and guided checks in one installation-free site. It clearly states what each test can and cannot establish, so browser-visible observations are not presented as hardware certification.
DeviceMetrik's answer:
Choose DeviceMetrik for a focused, installation-free first check across input, controller, display, audio, and camera devices. Its tools include measurement limits, privacy notes, and guided workflows that help narrow a browser-visible symptom before changing settings or seeking manufacturer or professional support.
DeviceMetrik's answer:
DeviceMetrik is for people troubleshooting a computer or connected device in a browser, including consumers, support technicians, QA testers, gamers, remote workers, and buyers checking used hardware. It is intended for preliminary browser-visible checks, not certification or automatic hardware diagnosis.
DeviceMetrik's answer:
DeviceMetrik was created to bring scattered single-purpose browser tests into one consistent Browser Diagnostic Center. The product emphasizes specific tasks, transparent limits, local browser interaction, and repeatable guided checks without requiring software installation.
DeviceMetrik's answer:
DeviceMetrik is built with Next.js, React, TypeScript, Tailwind CSS, and standard browser APIs for input, media, display, fullscreen, and Web Audio capabilities where relevant.
Share your experience with using Codewars and DeviceMetrik. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


Edabit offers a learning experience similar to learning a new language, focusing on smaller and more frequent exercises that build proficiency over time. Like Codewars, Edabit provides many challenges that increase in...
In conclusion, while Leetcode remains a valuable resource for coders, the platforms listed above offer varied approaches to learning and improving coding skills. Whether you're drawn to the gamified learning...
This LeetCode alternative has excellent features for anyone looking to sharpen their coding skills. Codewars uses kata, which are small coding exercises that are community developed to help you master your language of...
We have no reviews of DeviceMetrik yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Recently, I was working on a coding kata on codewars.com. Early on, I started thinking that a potential solution might utilize recursion, a concept that involves a function calling itself. However, I quickly realized that my grasp of... - Source: dev.to / almost 3 years ago
Get more involved. Look into internships and junior SWE positions to get a sample of what you'd be applying for once you graduate. Solve coding challenges, start working on a portfolio of your personal works. I recommend codewars.com for... Source: almost 3 years ago
I'd recommend to play around with some basic coding challenges on leetcode.com or codewars.com. If the course prepared you well you won't find this useful, but playing around with them will make sure that you are comfortable with basics... Source: about 3 years ago
Tracking DeviceMetrik since Aug 2026.
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Free Online Keyboard Testing Tool
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