
LeetCode
Codechef
HackerRank
Codewars
AlgoExpert.io
Coderbyte
CodeForces
The Topcoder home page has received a slick new makeover that lets new customers quckly login, discover the power of our community, and launch challenges.

LeetCode
HackerRank
Exercism
Codewars
Codecademy
BitDegree
Project Euler
A platform for solving algorithmic problems socially and preparing for technical interviews, inspired by binarysearch.io.

Which is more popular?
Based on our record, Topcoder seems to be more popular. It has been mentioned 6 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | topcoder.com | octree.io |
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Overall verdict
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Difference between HackerRank, LeetCode, topcoder and Codeforces
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External articles and on-site reviews we used to compare the two products.


What are LeetCode and LeetCode alternatives good for?LeetCode💡Interested in leveling up your career? Apply to the Formation Fellowship...
Topcoder is a platform where companies and employers can go to get developers who can work on their projects. The platform offers crowdsourcing services where several developers can work together to complete your task.
TopCoder is one of the original platforms for competitive programming online. It provides a list of algorithmic challenges from the past that you can complete on your own directly online using their code editor. Their...
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Recommendations tracked on public social media and blogs since March 2021.


TopCoder: Features algorithm and development competitions. - Source: dev.to / about 2 years ago
Leetcode.com for problem solving practice. Do basics first before jumping into this one. Similar thing you can do at topcoder.com for trying to code with a timer. Great for problem solving practice. Source: over 3 years ago
I know topcoder.com does competitive programming for $$, I haven't done it myself though so I'm not entirely sure how it works. Source: over 3 years ago
Tracking octree.io since Jul 2025.
When comparing Topcoder and octree.io, you can also consider the following products.

Practice and level up your development skills and prepare for technical interviews.
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CodeChef is a not-for-profit educational initiative by Directi, an Indian software company. It is a global programming community that fosters learning and friendly competition, built on top of the world’s largest competitive programming platform.
Compare Codechef to Topcoder or octree.io:

HackerRank is a platform that allows companies to conduct interviews remotely to hire developers and for technical assessment purposes.
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Download and solve practice problems in over 30 different languages.
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A better way to prep for tech interviews
Compare AlgoExpert.io to Topcoder or octree.io: