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Tutorials | CodeHS

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Tutorials

Tutorials
Level up your coding skills with interactive tutorials

Explore our latest free tutorials below

javascript

High School

Visualizing Music with JavaScript

Launch Tutorial

Cybersecurity

* Cybersecurity

Don't Fall for a Phishing Email!

By Jennifer Campbell

High School

Middle School

* Cybersecurity

* Dictionaries

How Strong is Your Password?

By Jennifer Campbell

High School

Middle School

* Cybersecurity

Digital Forensics

By Jennifer Campbell

High School

Getting Started

* Getting Started

Hello world

By Jeremy Keeshin

High School

Middle School

* Getting Started

* Java

java

Printing in Java

By Evelyn Hunter

High School

* Getting Started

* Python

python

Printing in Python

By Evelyn Hunter

High School

Java

* Getting Started

* Java

java

Printing in Java

By Evelyn Hunter

High School

* Lists

* Java

java

Arrays in Java

By Evelyn Hunter

High School

* Input/Output

* Java

java

File I/O in Java

By David Burnham

High School

Data Science

* Data Science

* Python

python

Pandas Series and Central Tendency

By Jennifer Campbell

High School

* Data Science

* Python

python

Measures of Spread

By Jennifer Campbell

High School

* Math

* Data Science

* Python

python

Math Module in Python

By Ryan Hart

High School

Web Design

* Web Design

* HTML

html

HTML Tables

By Jennifer Campbell

High School

Middle School

* Web Design

* HTML

html

HTML Colors

By Jennifer Campbell

High School

Middle School

* Web Design

* HTML

html

HTML Lists

By Jennifer Campbell

High School

Middle School

Math

* Math

Fly Me to the Moon

By David Burnham

High School

* Math

* Java

java

Java Documentation - Basics

By Zach Galant

High School

* Functions

* Math

* JavaScript

javascript

Randomization in JavaScript

By Ryan Hart

High School

Strings

* Strings

* Python

python

Indexing Python Strings

By Ryan Molyneaux

High School

* Strings

* Python

python

Slicing Python Strings

By Ryan Molyneaux

High School

* Strings

* Python

python

Python Strings

By Ryan Molyneaux

High School

Graphics

* Graphics

* JavaScript

javascript

Basic Graphics in JavaScript

By Ryan Hart

High School

* Graphics

* JavaScript

javascript

How to use the CodeHS JS Library on your Website

By Zach Galant

High School

Lists

* Lists

* Java

java

Arrays in Java

By Evelyn Hunter

High School

* Lists

* C++

c++

C++ Iterators

By David Burnham

High School

* Lists

* JavaScript

javascript

Arrays in JavaScript

By Rachel Devaney

High School

Input/Output

* Input/Output

* Java

java

File I/O in Java

By David Burnham

High School

* Input/Output

* C++

c++

Basic I/O in C++

By David Burnham

High School

* Input/Output

* C++

c++

File I/O in C++

By David Burnham

High School

Functions

* Functions

* Java

java

Basic Recursion

By David Burnham

High School

* Functions

* JavaScript

javascript

Default Parameters in JavaScript

By Ryan Hart

High School

* Functions

* Math

* JavaScript

javascript

Randomization in JavaScript

By Ryan Hart

High School

AP

* AP

* JavaScript

javascript

Sample A CSP Performance Task

By David Burnham

High School

* AP

* JavaScript

javascript

Sample B CSP Performance Task

By David Burnham

High School

* AP

* Python

python

Sample A CSP Performance Task

By David Burnham

High School

JavaScript

* JavaScript

javascript

JavaScript Modules

By Andy Bayer

* JavaScript

javascript

Seasonal Geometry Part Two

By Andy Bayer

* JavaScript

javascript

What's New in the CodeHS JavaScript Library?

By Andy Bayer

Python

* Getting Started

* Python

python

Python For Java Users

By David Burnham

High School

* Math

* Data Science

* Python

python

Math Module in Python

By Ryan Hart

High School

* Loops

* Python

python

Break and Continue in Python

By Rachel Devaney

High School

Loops

* Loops

* JavaScript

javascript

Break and Continue in JavaScript

By Rachel Devaney

High School

* Loops

* Lists

* JavaScript

javascript

Looping Through Arrays in JavaScript

By Rachel Devaney

High School

* Loops

* JavaScript

javascript

While Loops in JavaScript

By Rachel Devaney

High School

Crypto

* Crypto

What are NFTs?

By Jeremy Keeshin

High School

* Crypto

How to set up an Ethereum wallet on MetaMask

By Jeremy Keeshin

High School

* Cybersecurity

* Java

* Crypto

java

What is Blockchain

By David Burnham

High School

Dictionaries

* Cybersecurity

* Dictionaries

How Strong is Your Password?

By Jennifer Campbell

High School

Middle School

* Dictionaries

* Data Structures

* Python

python

Dictionaries in Python

By Rachel Devaney

High School

* Dictionaries

* Python

python

Comprehensions in Python

By Neel Kishnani

High School

HTML

* Web Design

* HTML

html

HTML Lists

By Jennifer Campbell

High School

Middle School

* Web Design

* HTML

html

HTML Tables

By Jennifer Campbell

High School

Middle School

* Web Design

* HTML

html

HTML Colors

By Jennifer Campbell

High School

Middle School

Variables

* Variables

* JavaScript

javascript

Variables in JavaScript

By Rachel Devaney

High School

* Variables

* Java

java

Variables in Java

By Evelyn Hunter

High School

* Variables

* Python

python

Lists in Python

By Evelyn Hunter

High School

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Platform

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Resources

* Why Computer Science

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* Digital Textbooks

* AP CSA Hub

Programming Languages

New Sandbox Program

* Javascript

* Python

* Java

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* C++

* SQL

* Karel

CodeHS Has Everything

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* Vibe Coding

* Yes

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Links found on this page

1. Products [direct]
2. CodeHop Standards aligned coding for districts [direct]
3. Tynker Gamified coding and apps [direct]
4. Typing Easy to use typing for schools [direct]
5. CodeHS Pro Comprehensive CS platform [direct]
6. Certifications Industry based credentials for CTE [direct]
7. Cyber Range Interactive environment for cybersecurity labs [direct]
8. AI Creator Easily create lessons with AI [direct]
9. Vibe Coding Guided AI coding for students [direct]
10. Bool AI coding and prototyping [direct]
11. Districts [direct]
12. Schools [direct]
13. Teachers [direct]
14. View All Products [direct]
15. Assignments Create & configure your course assignments [direct]
16. Classroom Manage & organize your class [direct]
17. Grading Streamline your grading workflow [direct]
18. Academic Integrity Build a culture of honesty in your classroom [direct]
19. QuizBuzz Run gamified, interactive quizzes with your class [direct]
20. Data Track & analyze student progress data [direct]
21. Write Code Write, run, & debug code in a web-based IDE [direct]
22. Integrations Connect CodeHS to your district's platform [direct]
23. AI Tools The most complete AI toolkit in CS education [direct]
24. LOGIC Measure student growth with pre- & posttests [direct]
25. Overview [direct]
26. Course Catalog [direct]
27. AP Courses [direct]
28. AI Courses [direct]
29. Interdisciplinary [direct]
30. Spanish Courses [direct]
31. AI Literacy [direct]
32. Digital Literacy [direct]
33. Cybersecurity [direct]
34. K-12 Pathways [direct]
35. Elementary School [direct]
36. Middle School [direct]
37. High School [direct]
38. Standards [direct]
39. States [direct]
40. Supplemental [direct]
41. Digital Textbooks [direct]
42. K-12 Pathways [direct]
43. Standards [direct]
44. Tutorials [direct]
45. Overview [direct]
46. Online PD Courses [direct]
47. In-Person & Virtual Workshops [direct]
48. AI PD [direct]
49. Free PD Events [direct]
50. PD Cohorts [direct]
51. Teacher Certification Prep [direct]
52. Microcredentials [direct]
53. PD Membership [direct]
54. JavaScript [direct]
55. Python [direct]
56. Java [direct]
57. C++ [direct]
58. SQL [direct]
59. HTML [direct]
60. Tracy [direct]
61. Blocks [direct]
62. p5.js [direct]
63. Karel [direct]
64. About Learn about the CodeHS mission [direct]
65. Privacy Center Our privacy & security practices [direct]
66. Case Studies How schools succeed with CodeHS [direct]
67. Testimonials What educators say about CodeHS [direct]
68. Read Write Code Blog News & stories from CodeHS [direct]
69. Coding in the Wild Real world coding stories [direct]
70. CodeHS on X Posts & highlights from our feed [direct]
71. Student Projects Explore projects built by students [direct]
72. Knowledge Base Help articles & how-tos [direct]
73. Career Center Explore careers in tech [direct]
74. Request a Quote [direct]
75. Log In [direct]
76. Sign Up [direct]
77. Java [direct]
78. JavaScript [direct]
79. Python 3 [direct]
80. HTML [direct]