1
Also covers git · open source
This repository documents a 90-day cybersecurity study plan with topics for a staged learning schedule.
Alternatives
The Best CSDIY Alternatives in 2026
24 alternatives1 free · 4 open source
Looking for something like CSDIY? 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 4 are open source.
This guide to self-learning computer science draws on the author’s experience studying at university.
Top picks at a glance
First suggestion90DaysOfCyberSecurityThis repository documents a 90-day cybersecurity study plan…Free or freemium optionCS50CS50x is Harvard’s introduction to computer science and…Another optionOh My Git!A Git learning game visualizes repository structures in…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | 90DaysOfCyberSecurity | — | Yes | Linux |
| 2 | Oh My Git! | — | Not stated | Linux, macOS, Web |
| 3 | ProgrammingLearningResources | — | Not stated | Linux, Web |
| 4 | Learn Git Branching | — | Not stated | Web |
| 5 | Oh Shit, Git!?! | — | Not stated | Web |
| 6 | Git Cheatsheet | — | Not stated | Web |
| 7 | 30 Seconds of Code | — | Not stated | Web |
| 8 | Tpoint Tech | — | Not stated | Android, Web |
| 9 | LandChad | — | Not stated | Web |
| 10 | HackTricks | — | Not stated | Linux, Web |
All CSDIY alternatives
2
Oh My Git!
ohmygit.orgAlso covers git · same kind of website
A Git learning game visualizes repository structures in real time as players interact with the version control system.
3
ProgrammingLearningResources
rentry.co/ProgrammingLearningResourcesAlso covers git · same kind of website
This programming learning resource organizes links by language and subject, including web development, databases, and game development.
4
Learn Git Branching
learngitbranching.js.orgAlso covers git · same kind of website
Learn Git Branching teaches Git through an interactive terminal and branching exercises.
5
Oh Shit, Git!?!
ohshitgit.comAlso covers git · same kind of website
This guide explains how to recover from common Git mistakes, with a cleaner-language version available at dangitgit.com.
6
Git Cheatsheet
ndpsoftware.com/git-cheatsheet.htmlAlso covers git · same kind of website
The interactive Git cheatsheet groups commands by the parts of a repository or workflow they affect.
7
30 Seconds of Code
30secondsofcode.orgAlso covers git · same kind of website
30 Seconds of Code offers hundreds of short coding articles to help readers practice programming skills.
8
Tpoint Tech
tpointtech.comAlso covers git · same kind of website
Tpoint Tech publishes free online tutorials and interview questions across programming languages and technology subjects.
9
LandChad
landchad.netAlso covers git · same kind of website
LandChad.net provides guides for setting up personal internet services and websites.
10
HackTricks
book.hacktricks.wikiAlso covers git · same kind of website
HackTricks collects cybersecurity reference material and provides links to training, tools, and updates.
11
git-commands
gabrieldejesus.github.io/git-commandsAlso covers git · same kind of website
git-commands lists common Git commands with English and Portuguese language options.
12
The Linux Kernel
kernel.org/docAlso covers git · same kind of website
Linux Kernel Documentation mirrors documentation extracted from the Linux kernel in a web-readable format.
13
W3Schools
w3schools.comAlso covers git · same kind of website
W3Schools provides online web tutorials, including material on HTML, CSS, and JavaScript.
14
CodeAnalogies
codeanalogies.comAlso covers git · same kind of website
CodeAnalogies teaches CSS and JavaScript concepts through visual guides, analogies, and imagery.
15
Interview University
github.com/jwasham/coding-interview-universityA computer science study plan, Interview University helps learners prepare for software engineering roles.
16
Archives
kernel.orgAlso covers git · same kind of website
Archives provides protocol and location information for public software repositories.
17
Git Time
git.bradwoods.ioAlso covers git · same kind of website
Git Time introduces Git version control through a browser game about managing code changes.
18
Git Tutorial
4geeksacademy.github.io/git-interactive-tutorialAlso covers git · same kind of website
Git Tutorial provides an interactive terminal for practicing Git commands.
19
Open source
OSSU Computer Science outlines a free, self-directed path for studying computer science.
20
Same kind of website · free
CS50x is Harvard’s introduction to computer science and programming for students with or without prior experience.
21
Python Guide
github.com/realpython/python-guideAlso covers git
The Hitchhiker’s Guide to Python is a handbook covering Python installation, configuration, and development practices.
22
TeachYourselfComputerScience
teachyourselfcs.comSame kind of website
Teach Yourself Computer Science curates resources for building a broad, self-directed computer science education.
23
Also covers git · open source
A public list collects open-source frontend coding challenges from companies for testing development skills.
24
Also covers git · open source
This repository provides solutions to LeetCode problems for readers to review and use in coding practice.
No alternatives match this filter.
Alternatives to similar tools
OSSU Comp Sci24 alternativesFrontend Challenges24 alternativesInterview University24 alternatives90DaysOfCyberSecurity24 alternativesCS5024 alternativesProgrammingLearningResources24 alternatives
What is the best alternative to CSDIY?
Based on features, tags and platforms, the closest alternatives to CSDIY are 90DaysOfCyberSecurity, Oh My Git!, and ProgrammingLearningResources.
Is there a free alternative to CSDIY?
Yes. CS50 is free or offer a free plan.
Are there open-source alternatives to CSDIY?
Yes: 90DaysOfCyberSecurity, OSSU Comp Sci, Frontend Challenges, and Videos.
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