Top 11 Open-Source Alternatives to Codility

Codility

Codility provides a SaaS platform with advanced validation, security and protection features to evaluate the skills of software engineers.

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Product categories

Hiring And Recruitment Online Education Online Learning Online Courses Programming Skill Assessment Applicant Tracking Candidate Screening And Assessment Employee Performance Management Recruitment AI ATS And Recruiting

Summary

The top open-source alternatives to Codility are LeetCode, Codewars, and Exercism. 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 Courses #Programming #Online Learning 544 social mentions
Codewars Landing Page
2

Codewars

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

Exercism

Download and solve practice problems in over 30 different languages.
Pricing:
- Open Source
#Online Courses #Programming #Online Learning 318 social mentions
Project Euler Landing Page
4

Project Euler

Project Euler is a series of challenging mathematical/computer programming problems that will...
Pricing:
- Open Source
#Online Courses #Programming #Online Learning 415 social mentions
Plum Landing Page
5

Plum

A simple Messenger bot for quickly finding great recipes.
Pricing:
- Open Source
#Applicant Tracking #HR #Employee Performance Management 20 social mentions
Filtered Landing Page
6

Filtered

Filtered is an online education platform that offers tailored training to individuals and businesses.
Pricing:
- Open Source
#Online Learning #Candidate Screening And Assessment #Hiring And Recruitment
Skillsz Landing Page
7

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 / Monthly (1 user)
#Productivity #HR Tools #Employee Performance Management 2 user reviews
OneWayInterview Landing Page
8

OneWayInterview

Only Committed Candidates Who Invest in Tests. AI Validates Any Format: Text, Video, or List. AI Evaluates Language for Results-Driven Focus.
Pricing:
- Open Source
#Recruitment #AI #Digital Interview Platform
Flexbox Froggy Landing Page
9

Flexbox Froggy

A game for learning CSS flexbox
Pricing:
- Open Source
#Online Education #CSS Tools #Design Tools 268 social mentions
topin.tech Landing Page
10

topin.tech

Your go-to online skill assessment platform to hire job-ready freshers. Tailored tests for 100+ skills. 10,000+ question library. Chosen by leading IT recruiters
Pricing:
- Open Source
#ATS And Recruiting #Candidate Screening And Assessment #Hiring And Recruitment
hireEZ (Formerly Hiretual) Landing Page
11

hireEZ (Formerly Hiretual)

Your Outbound Recruiting Platform.
Pricing:
- Open Source
- Freemium
- Free Trial
#Applicant Tracking #Recruitment #Business & Commerce 1 social mentions