1
Codewars
codewars.comAlso covers programming · same kind of website
Codewars offers community-created coding exercises called kata, with practice across more than 55 programming languages.
Alternatives
The Best Codility Alternatives in 2026
24 alternatives3 free · 1 open source
Looking for something like Codility? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 3 are free or have a free plan and 1 are open source.
Codility Developer Training offers hands-on programming lessons, including exercises on topics such as binary gaps.
Top picks at a glance
First suggestionCodewarsCodewars offers community-created coding exercises called…Free or freemium optionHacksplainingHacksplaining teaches secure coding through interactive…Open source optionCoding ProblemsCoding Problems provides solutions to coding and algorithm…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Codewars | — | Not stated | Web |
| 2 | Hacksplaining | Freemium | Not stated | Web |
| 3 | HackerRank | — | Not stated | Web |
| 4 | Skilled.dev | — | Not stated | Web |
| 5 | Coding Problems | — | Yes | — |
| 6 | 30 Days Of JavaScript | — | Not stated | — |
| 7 | Assembly Tutorial | — | Not stated | — |
| 8 | Scratch | Free | Not stated | Web |
| 9 | QB64SourceCode | — | Not stated | Web |
| 10 | CodeAbbey | — | Not stated | Web |
All Codility alternatives
2
Also covers programming · same kind of website · free plan
Hacksplaining teaches secure coding through interactive browser lessons covering OWASP Top 10 and GenAI threats.
3
HackerRank
hackerrank.comAlso covers programming · same kind of website
HackerRank is a coding test and interview solution for hiring developers.
4
Skilled.dev
skilled.devAlso covers programming · same kind of website
Skilled.dev provides coding interview preparation through a course for developers pursuing software engineering roles.
5
Also covers programming · open source
Coding Problems provides solutions to coding and algorithm problems and multiple programming exercises.
6
30 Days Of JavaScript
github.com/Asabeneh/30-Days-Of-JavaScriptAlso covers programming
The 30 Days of JavaScript challenge provides step-by-step programming lessons that learners can follow at their own pace.
7
Assembly Tutorial
github.com/mschwartz/assembly-tutorialAlso covers programming
Assembly Tutorial teaches programming in assembly language through written lessons.
8
Also covers programming · same kind of website · free
Scratch lets people create interactive stories, games, and animations with a visual programming language and online community.
9
QB64SourceCode
qb64tutorial.comAlso covers programming · same kind of website
A beginner tutorial introduces game programming with QB64 Phoenix Edition.
10
CodeAbbey
codeabbey.comAlso covers programming · same kind of website
CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.
11
AtCoder
atcoder.jpAlso covers programming · same kind of website
AtCoder hosts online programming contests, including beginner and heuristic contests, with practice contests for new users.
12
Rosetta Code
rosettacode.org/wiki/Rosetta_CodeAlso covers programming · same kind of website
Rosetta Code presents solutions to the same programming tasks in multiple languages for comparison.
13
Programiz
programiz.comAlso covers programming · same kind of website
Programiz offers free online compilers and code editors alongside programming tutorials for languages including Python, JavaScript, SQL, and C++.
14
zetcode
zetcode.comAlso covers programming · same kind of website
ZetCode offers accessible programming tutorials covering C#, Go, Python, Java, and other languages.
15
30 Seconds of Code
30secondsofcode.orgAlso covers programming · same kind of website
30 Seconds of Code offers hundreds of short coding articles to help readers practice programming skills.
16
Ebook Foundation
ebookfoundation.github.io/free-programming-booksAlso covers programming · same kind of website
The Ebook Foundation's free-programming-books repository lists freely available learning resources in many languages.
17
CP-Algorithms
cp-algorithms.comAlso covers programming · same kind of website
Competitive programming algorithms are documented with descriptions and examples in CP-Algorithms.
18
Toph
toph.coAlso covers programming · same kind of website
Toph hosts competitive programming contests and problems on algorithms and data structures, with a community for participants.
19
Try Ruby
try.ruby-lang.orgAlso covers programming · same kind of website
TryRuby gives users a short, interactive introduction to programming in Ruby.
20
Learn X in Y minutes
learnxinyminutes.comAlso covers programming · same kind of website
Learn X in Y Minutes offers concise programming language tours and examples.
21
Amit’s Game Programming
www-cs-students.stanford.edu/~amitp/gameprog.h…Also covers programming · same kind of website
Amit’s Game Programming Information answers questions about learning game development, building games, and progressing as a programmer.
22
Also covers programming · same kind of website · free
Exercism offers practice and mentoring across 83 programming languages.
23
EMKC
emkc.org/challengesAlso covers programming · same kind of website
EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
24
TechSchool
techschool.dev/enAlso covers programming · same kind of website
TechSchool provides free technology education and programming courses, including Elixir, Python, Ruby, React, and Node.
No alternatives match this filter.
Alternatives to similar tools
Scratch24 alternativesHacksplaining24 alternativesQB64SourceCode24 alternativesCodeAbbey24 alternativesCoding Problems24 alternativesAssembly Tutorial24 alternatives
What is the best alternative to Codility?
Based on features, tags and platforms, the closest alternatives to Codility are Codewars, Hacksplaining, and HackerRank.
Is there a free alternative to Codility?
Yes. Hacksplaining, Scratch, and Exercism are free or offer a free plan.
Are there open-source alternatives to Codility?
Yes: Coding Problems.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative