Top 12 Open-Source Alternatives to LeetCode

LeetCode

Practice and level up your development skills and prepare for technical interviews.

As LeetCode is an open source project, you can find more open source alternatives and stats on LibHunt.

Product categories

Cloud Hosting Code Collaboration Coding Community Developer Tools Education Education & Reference Online Courses Online Education Online Learning Programming Text Editors

Summary

The top open-source alternatives to LeetCode are Codewars, Project Euler, and Exercism.io. One of the criteria for ordering this list is the number of mentions that products have on reliable external sources. You can suggest additional sources through the form here.

Codewars Landing Page
1

Codewars

Achieve code mastery through challenge.
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 160 social mentions
Project Euler Landing Page
2

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will...
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 407 social mentions
Exercism.io Landing Page
3

Exercism.io

Download and solve practice problems in over 30 different languages.
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 299 social mentions
Daily Coding Problem Landing Page
4

Daily Coding Problem

Get exceptionally good at coding interviews
Pricing:
- Open Source
#Online Learning #Online Education #Education & Reference 1 social mentions
W3Schools Landing Page
5

W3Schools

W3Schools is a web developers information website, with tutorials and references on web development...
Pricing:
- Open Source
#Online Learning #Online Courses #Online Education 186 social mentions
The Odin Project Landing Page
6

The Odin Project

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.
Pricing:
- Open Source
#Online Learning #Online Courses #Online Education 233 social mentions
DMOJ Landing Page
7

DMOJ

The DMOJ is a modern contest platform and archive of programming problems.
Pricing:
- Open Source
#Online Education #Online Learning #Programming 11 social mentions
CodeSandbox Landing Page
8

CodeSandbox

Online playground for React
Pricing:
- Open Source
#Text Editors #Programming #Code Collaboration 300 social mentions
Glitch Landing Page
9

Glitch

Glitch is the friendly community where everyone builds the web. Simple, powerful interface for creating web apps.
Pricing:
- Open Source
- Free
- Free Trial
#Text Editors #Cloud Hosting #Code Collaboration 112 social mentions
Learn X in Y minutes Landing Page
10

LXY

Learn X in Y minutes

LearnXinYminutes isn’t a good way to learn your first programming language, but it’s a great way to...
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 146 social mentions
Bomberland by Coder One Landing Page
11

Bomberland by Coder One

A multi-player AI sandbox to practise machine learning.
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses
Scratch Landing Page
12

Scratch

Scratch is the programming language & online community where young people create stories, games, & animations.
Pricing:
- Open Source
#Kids Education #Programming #Coding 558 social mentions

Suggest an alternative

If you think we've missed something, please suggest an alternative to LeetCode.

Please use the Feedback button if you think any of the listed products shouldn't be regarded as open-source.

LeetCode discussion

Rohit Singh
· about 1 year ago
· Reply

Leetcode is a fantastic platform, no doubt. But exploring alternatives can expose you to different problem types, competitive environments, and learning formats, making you a more versatile coder. Plus, it’s always good to have a few more tools in your toolkit, right?