1
Also covers developers, game, and python · same kind of website · free
CodinGame combines coding games, puzzles, and programming challenges, with support for more than 25 languages.
Alternatives
The Best Checki0 Alternatives in 2026
24 alternatives1 free · 1 open source
Looking for something like Checki0? Here are 24 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.
CheckiO provides coding games where learners practice Python and TypeScript programming.
Top picks at a glance
First suggestionCodinGameCodinGame combines coding games, puzzles, and programming…Open source optionApp ideasThis repository collects application ideas that developers…Another optionStayingStaying visualizes Python, JavaScript, and C/C++ execution…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | CodinGame | Free | Not stated | Web |
| 2 | Staying | — | Not stated | Web |
| 3 | Typing | — | Not stated | Web |
| 4 | TypeHero | — | Not stated | Web |
| 5 | Leet Code | — | Not stated | Web |
| 6 | Student Developer Pack | — | Not stated | Web |
| 7 | App ideas | — | Yes | — |
| 8 | HackerRank | — | Not stated | Web |
| 9 | PHP: The Right Way | — | Not stated | Web |
| 10 | React TypeScript Cheatsheets | — | Not stated | Web |
All Checki0 alternatives
2
Staying
staying.fun/enAlso covers developers and python · same kind of website
Staying visualizes Python, JavaScript, and C/C++ execution step by step, showing variables and changing data structures.
3
Typing
typing.ioAlso covers developers · same kind of website
typing.io is a typing tutor for programmers, with practice focused on symbols that are difficult to reach while coding.
4
TypeHero
typehero.devAlso covers developers
Learn TypeScript through interactive coding exercises and connect with a community of developers on TypeHero.
5
Leet Code
walkccc.me/LeetCodeAlso covers python · same kind of website
LeetCode Solutions lists coding solutions in C++23, Java, Python, MySQL, and TypeScript.
6
Also covers developers · same kind of website
GitHub Student Developer Pack bundles partner tools and services to help students learn coding through hands-on projects.
7
Also covers developers · open source
This repository collects application ideas that developers can use to practice and improve their coding skills.
8
HackerRank
hackerrank.comAlso covers developers · same kind of website
HackerRank is a coding test and interview solution for hiring developers.
9
PHP: The Right Way
phptherightway.comAlso covers developers · same kind of website
PHP: The Right Way offers a quick reference to PHP practices, coding standards, and links to tutorials.
10
React TypeScript Cheatsheets
react-typescript-cheatsheet.netlify.appAlso covers developers
Learn how to use TypeScript with React components, hooks, and frameworks through this developer cheatsheet.
11
Amit’s Game Programming
www-cs-students.stanford.edu/~amitp/gameprog.h…Also covers developers and game · same kind of website
Amit’s Game Programming Information answers questions about learning game development, building games, and progressing as a programmer.
12
Learn PHP
odan.github.io/learn-phpAlso covers developers · same kind of website
Learn PHP collects curated resources for learning and practicing the PHP programming language.
13
Codeguage
codeguage.comAlso covers developers · same kind of website
Codeguage offers short self-study courses focused on core programming topics.
14
Advanced R
adv-r.hadley.nzAlso covers developers · same kind of website
This bookdown site presents a second-edition book about programming and analysis with the R language.
15
CSS Battle
cssbattle.devAlso covers developers and game · same kind of website
CSS Battle offers games and challenges where users recreate target designs with CSS.
16
From Zero To Hero
therealpenaz91.itch.io/2dgd-f0thAlso covers developers and game · same kind of website
From Zero to Hero collects community knowledge about 2D game development.
17
MySQL Tutorial
mysqltutorial.orgAlso covers developers · same kind of website
MySQL Tutorial provides lessons and reference material for learning MySQL.
18
Josh Comeau
joshwcomeau.comAlso covers developers · same kind of website
Josh Comeau publishes friendly front-end web articles and tutorials, including material on anchor positioning.
19
Modern JS Cheatsheet
mbeaudru.github.io/modern-js-cheatsheetAlso covers developers · same kind of website
Review JavaScript features and syntax frequently used in modern projects with this cheatsheet.
20
HTML Cheat Sheet
htmlcheatsheet.comAlso covers developers · same kind of website
The interactive HTML Cheat Sheet includes code examples, developer tools, and markup generators.
21
EggHead
egghead.ioAlso covers developers · same kind of website
egghead offers expert-led courses and curated resources for modern web development.
22
Java Design Patterns
java-design-patterns.comAlso covers developers · same kind of website
Java Design Patterns offers a reference collection for studying common software design patterns in Java.
23
MDN
developer.mozilla.orgAlso covers developers · same kind of website
MDN Web Docs documents open web technologies, including HTML, CSS, JavaScript, and APIs for websites and web apps.
24
SQLable -
sqlable.comAlso covers developers · same kind of website
SQLable collects SQL and database learning resources, including information about SQL features and tools.
No alternatives match this filter.
Alternatives to similar tools
Student Developer Pack24 alternativesFrom Zero To Hero24 alternativesStaying24 alternativesAmit’s Game Programming24 alternativesPHP: The Right Way24 alternativesHTML Cheat Sheet24 alternatives
What is the best alternative to Checki0?
Based on features, tags and platforms, the closest alternatives to Checki0 are CodinGame, Staying, and Typing.
Is there a free alternative to Checki0?
Yes. CodinGame is free or offer a free plan.
Are there open-source alternatives to Checki0?
Yes: App ideas.
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