Top 12 Open-Source Alternatives to Codility

Product categories

API Tools CSS Games CSS Tools Chat Coding Education Hiring And Recruitment Online Courses Online Education Online Learning Programming Skill Assessment

Summary

The top open-source alternatives to Codility are LeetCode, Codewars, and Project Euler. 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.

LeetCode Landing Page
1

LeetCode

Practice and level up your development skills and prepare for technical interviews.
Pricing:
- Open Source
#Online Education #Online Learning #Online Courses 515 social mentions
Codewars Landing Page
2

Codewars

Achieve code mastery through challenge.
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 160 social mentions
Project Euler Landing Page
3

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will...
Pricing:
- Open Source
#Online Learning #Online Education #Programming 405 social mentions
Exercism.io Landing Page
4

Exercism.io

Download and solve practice problems in over 30 different languages.
Pricing:
- Open Source
#Online Learning #Online Education #Online Courses 297 social mentions
DMOJ Landing Page
5

DMOJ

The DMOJ is a modern contest platform and archive of programming problems.
Pricing:
- Open Source
#Online Education #Online Learning #Online Courses 11 social mentions
Filtered Landing Page
6

Filtered

Filtered is an online education platform that offers tailored training to individuals and businesses.
Pricing:
- Open Source
#Hiring And Recruitment #Online Learning #Digital Interview Platform
Daily Coding Problem Landing Page
7

Daily Coding Problem

Get exceptionally good at coding interviews
Pricing:
- Open Source
#Online Learning #Online Education #Coding 1 social mentions
IHP Landing Page
8

IHP

The fastest way to buildtype safe web apps 🔥
Pricing:
- Open Source
#API Tools #Web Frameworks #Developer Tools 40 social mentions
The Odin Project Landing Page
9

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 232 social mentions
Skillsz Landing Page
10

Skillsz

Skillsz is a pre-employment talent screening, assessment, and shortlisting platform enabling tech companies to measure developers’ skills online and hire the most promising developers.
Pricing:
- Open Source
- Paid
- Free Trial
- $49.0 / Monthly (1 user)
#Skill Assessment #Hiring And Recruitment #Productivity 2 user reviews
BigBlueButton Landing Page
11

BigBlueButton

Engage Your Online Students. BigBlueButton is a web conferencing system designed for online learning.
Pricing:
- Open Source
#Web And Video Conferencing #LMS #Group Chat & Notifications 17 social mentions
Flexbox Froggy Landing Page
12

Flexbox Froggy

A game for learning CSS flexbox
Pricing:
- Open Source
#CSS Tools #Online Education #Design Tools 252 social mentions