Coding Problems provides solutions to coding and algorithm problems and multiple programming exercises.
The Best You Don't Know JS Alternatives in 2026
Looking for something like You Don't Know JS? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 2 are free or have a free plan and 7 are open source.
You Don’t Know JS is a book series that explores the core mechanisms of the JavaScript language.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Coding Problems | — | Yes | — |
| 2 | Cpp Core Guidelines | — | Not stated | — |
| 3 | Assembly Tutorial | — | Not stated | — |
| 4 | Basic Computer Games | — | Yes | — |
| 5 | C++ Core Guidelines | — | Not stated | Web |
| 6 | 30 Days Of JavaScript | — | Not stated | — |
| 7 | 33 JS Concepts | — | Yes | — |
| 8 | Scratch | Free | Not stated | Web |
| 9 | Learn X in Y minutes | — | Not stated | Web |
| 10 | Ebook Foundation | — | Not stated | Web |
All You Don't Know JS alternatives
Cpp Core Guidelines
github.com/isocpp/CppCoreGuidelinesThe C++ Core Guidelines provide established guidance for writing safer and simpler C++ programs.
Assembly Tutorial
github.com/mschwartz/assembly-tutorialAssembly Tutorial teaches programming in assembly language through written lessons.
Basic Computer Games updates the classic programming book with examples in modern memory-safe languages.
C++ Core Guidelines
isocpp.github.io/CppCoreGuidelines/CppCoreGuid…The C++ Core Guidelines are a set of guidelines for writing C++ programs, edited by Bjarne Stroustrup and Herb Sutter.
30 Days Of JavaScript
github.com/Asabeneh/30-Days-Of-JavaScriptThe 30 Days of JavaScript challenge provides step-by-step programming lessons that learners can follow at their own pace.
33 JS Concepts summarizes JavaScript concepts for developers, with examples and reference material.
Scratch lets people create interactive stories, games, and animations with a visual programming language and online community.
Learn X in Y minutes
learnxinyminutes.comLearn X in Y Minutes offers concise programming language tours and examples.
Ebook Foundation
ebookfoundation.github.io/free-programming-booksThe Ebook Foundation's free-programming-books repository lists freely available learning resources in many languages.
CodingFantasy
codingfantasy.comCodingFantasy teaches CSS, HTML, and JavaScript through browser-based coding games.
Programiz
programiz.comProgramiz offers free online compilers and code editors alongside programming tutorials for languages including Python, JavaScript, SQL, and C++.
JavaScript.info
javascript.infoJavaScript.info provides a detailed modern JavaScript tutorial in multiple languages.
JavaScriptQuiz tests JavaScript knowledge through randomized questions.
System Design Academy
github.com/systemdesign42/system-design-academySystem Design Academy points readers to a newsletter about AI engineering and system design.
OSSU Computer Science outlines a free, self-directed path for studying computer science.
system-design-primer
github.com/donnemartin/system-design-primerThe system design primer explains large-scale system design and includes interview preparation material and Anki flashcards.
Build your own X
github.com/codecrafters-io/build-your-own-xBuild Your Own X teaches programming by guiding readers through recreating familiar technologies.
This tutorial covers reverse engineering across x86, x64, ARM, AVR, and RISC-V processor architectures.
modern-cpp-tricks
github.com/rachitiitr/modern-cpp-tricksThis list collects modern C++ techniques used in coding interviews and competitive programming.
OSSU Data Science
github.com/ossu/data-scienceOSSU Data Science provides a free study path based on an undergraduate data science curriculum.
Interview University
github.com/jwasham/coding-interview-universityA computer science study plan, Interview University helps learners prepare for software engineering roles.
This repository collects application ideas that developers can use to practice and improve their coding skills.
Awesome LeetCode Resources collects learning materials for data structures and algorithms and provides a newsletter link.
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