
Codewars
Exercism
LeetCode
CodinGame
CodeCombat
HackerRank
Codecademy
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.

X Minute Timer
TickCounter
vClock
Timer and Stopwatch
It's Almost
Online timer
Online Countdown by Datelist
Big Timer is a fullscreen countdown timer for workshops, presentations and meetings in your browser.

Which is more popular?
Based on our record, CheckIO seems to be a lot more popular than Big Timer. While we know about 46 links to CheckIO, we've tracked only 1 mention of Big Timer.
Website, pricing, platforms and company facts side by side.
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| Website | checkio.org | bigtimer.net |
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What each product offers, as listed by its team.


Possible disadvantages
No features have been listed yet.
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.
Intro Video. How to get maximum from CheckiO
Is the TNT Big Timer 149.99 worth it/review?
More videos
How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using CheckIO and Big Timer. 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 Big Timer 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
I use bigtimer.net for this. It shows a really big full screen timer. I put it on my large TV that's right in my face and unmissable. Source: almost 5 years ago
When comparing CheckIO and Big Timer, you can also consider the following products.


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Download and solve practice problems in over 30 different languages.
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Create a countdown timer and put it on your website in 30 seconds. For free. Works great with Canva, Wordpress, Shopify, Wix and many others.
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Practice and level up your development skills and prepare for technical interviews.
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Web based time tools including Alarms, Timers, Stopwatch, and World Clocks. vClock is customizable and has a clean user interface.
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