
LeetCode
openleetcode
Codecademy
Exercism
Codewars
HackerRank
Project Euler
The invisible desktop app powered by AI, instantly providing answers to Leetcode problems for effortless coding interviews, like having ChatGPT in your ear.

Codecademy
The Odin Project
edX
Coursera
Treehouse
Khan Academy
Pluralsight
Learn to code by helping nonprofits.

Which is more popular?
Based on our record, Free Code Camp seems to be more popular. It has been mentioned 577 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | leetcodewizard.io | freecodecamp.org |
| Pricing | — | |
| Company | — | Startup from the United States |
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Free Code Camp Review - Is It Worth Your Time?
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freeCodeCamp grants certificates to candidates after they finishing a topic/chapter which can enrich your portfolio However, if you are looking/preparing for jobs, leetcode is better
Free Code Camp is a web development bootcamp that has helped tens of thousands of their graduates find a job at tech companies.
Recommendations tracked on public social media and blogs since March 2021.


Tracking Leetcode Wizard since Oct 2026.
FreeCodeCamp Freecodecamp.org Free coding tutorials, including responsive design and JavaScript. - Source: dev.to / over 1 year ago
Freecodecamp provides 10+ free web development courses in JavaScript, Python, front-end, and back-end that are more than enough to kickstart any developer's career. You learn through interactive coding exercises and articles, and can... - Source: dev.to / over 2 years ago
Don't do bootcamp. Start with something like https://freecodecamp.org and take a few lessons. Try to build something from that and see how motivated you are. If you see some progress and this thing still excites you, then may be find an... - Source: Hacker News / over 2 years ago
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Practice and level up your development skills and prepare for technical interviews.
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Learn the technical skills you need for the job you want. As leaders in online education and learning to code, we’ve taught over 45 million people using a tested curriculum and an interactive learning environment.
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we have democratized the LeetCode tests. Contribute to therepanic/openleetcode development by creating an account on GitHub.
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How it works. This is the website we wish we had when we were learning on our own. We scour the internet looking for only the best resources to supplement your learning and present them in a logical order.
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Best Courses. Top Institutions. Learn anytime, anywhere.
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Download and solve practice problems in over 30 different languages.
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