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Also covers companies · open source
A public list collects open-source frontend coding challenges from companies for testing development skills.
Alternatives
The Best HackTheEarth Alternatives in 2026
9 alternatives1 free · 1 open source
Looking for something like HackTheEarth? Here are 9 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 1 are open source.
About HackTheEarthhackerearth.com/challenges
VisitHackerEarth's Compete section offers programming challenges from companies for users to test their skills.
Top picks at a glance
First suggestionFrontend ChallengesA public list collects open-source frontend coding…Free or freemium optionCodinGameCodinGame combines coding games, puzzles, and programming…Another optionCoding QuestionsStrataScratch offers over 1,000 data science interview…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Frontend Challenges | — | Yes | — |
| 2 | Coding Questions | — | Not stated | Web |
| 3 | CS50 | — | Not stated | Android, iOS, Web |
| 4 | 30 Seconds of Code | — | Not stated | Web |
| 5 | CodeAbbey | — | Not stated | Web |
| 6 | EMKC | — | Not stated | Web |
| 7 | Kattis | — | Not stated | Web |
| 8 | CodinGame | Free | Not stated | Web |
| 9 | JSLogo | — | Not stated | Web |
All HackTheEarth alternatives
2
Coding Questions
platform.stratascratch.com/codingAlso covers companies · same kind of website
StrataScratch offers over 1,000 data science interview questions across SQL, Python, statistics, machine learning, and data projects.
3
CS50
cs50.harvard.edu/pythonSame kind of website
CS50’s Python course introduces programming with Python, covering code reading and writing, testing, debugging, and core concepts.
4
30 Seconds of Code
30secondsofcode.orgSame kind of website
30 Seconds of Code offers hundreds of short coding articles to help readers practice programming skills.
5
CodeAbbey
codeabbey.comSame kind of website
CodeAbbey offers programming problems for practice, with recent challenges and a programming certificate.
6
EMKC
emkc.org/challengesSame kind of website
EMKC offers practical coding challenges and contests that can be completed in any of 17 programming languages.
7
Kattis
open.kattis.comSame kind of website
Kattis provides a problem archive for users to practice programming challenges.
8
Same kind of website · free
CodinGame combines coding games, puzzles, and programming challenges, with support for more than 25 languages.
9
JSLogo
calormen.com/jslogoLogo Interpreter is a browser-based Logo programming environment with tests, reference material, and collaboration features.
No alternatives match this filter.
Alternatives to similar tools
CodeAbbey24 alternativesFrontend Challenges24 alternativesJSLogo24 alternativesCS5024 alternativesCoding Questions24 alternatives30 Seconds of Code24 alternatives
What is the best alternative to HackTheEarth?
Based on features, tags and platforms, the closest alternatives to HackTheEarth are Frontend Challenges, Coding Questions, and CS50.
Is there a free alternative to HackTheEarth?
Yes. CodinGame is free or offer a free plan.
Are there open-source alternatives to HackTheEarth?
Yes: Frontend Challenges.
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