IT requirements for Code.org tutorials

Hardware

  • We recommend at least a 15 MBit/sec Internet connection for your school.
  • The smallest screen size we support is 1024 x 728 px.
  • You will need a desktop or laptop computer with a mouse (or touchpad) and keyboard for our middle and high school-level courses: CS Discoveries, CS Principles, and Intro to App Lab. iPads (including with a keyboard attachment) or other tablets are not supported for CS Discoveries, CS Principles, and Intro to App Lab.
  • All other content, such as K-5 courses (Computer Science Fundamentals) and Hour of Code activities are compatible on iPads and Chromebooks in addition to all other modern tablets and laptop or desktop computers.
  • Looking for mobile device support details? Read below.

Supported Browsers and Platforms

Code.org takes a tiered approach to the level of support we provide for different browsers and platforms to ensure we are building a stellar experience for most of our users, and an acceptable experience for the rest. We support the following combinations of operating systems and browsers:

Browser Operating System
Chrome 33.x and higher Windows 7 and higher

macOS 10.6 and higher

Android 4.1.2 and higher

ChromeOS (Chromebooks)
Safari 7.0.x and higher macOS 10.6 and higher

iOS 7.x and higher
Internet Explorer 11 and higher Windows 7 and higher

macOS 10.6 and higher
Microsoft Edge Windows 10 and higher
Firefox 25.x and higher Windows 7 and higher

Sites to Unblock

For the very best experience with all Code.org content, we recommend consulting with your school or district's IT department to ensure the following sites are allowed and aren't blocked.

Priority URL
Required https://code.org
https://*.code.org
Optional https://cdn.optimizely.com
https://www.google-analytics.com
To use YouTube hosted videos
(Enhanced Privacy Mode - available late July 2018)
https://youtube-nocookie.com/*
https://*.googlevideo.com/*
https://*.ytimg.com/*
To use YouTube hosted videos
(Deprecated late July 2018)
https://s.youtube.com/*
https://www.youtube.com/*
https://*.googlevideo.com/*
https://*.ytimg.com/*
To use Code.org hosted videos Unblock:
https://videos.code.org
Block:
https://www.youtube.com/favicon.ico
https://www.youtube-nocookie.com/favicon.ico
To use Internet Simulator https://api.pusherapp.com
wss://ws.pusherapp.com:443
To use Web Lab https://downloads.computinginthecore.org
https://codeprojects.org

Mobile Support Details

All CS Discoveries, CS Principles, and Intro to App Lab courses are not compatible with tablets or mobile devices - a full keyboard and mouse (or touchpad, like on MacBooks) are required. Microsoft Surface Pros with a keyboard attachment and Chromebooks are compatible. iPads or other tablets with a keyboard attachment are not compatible.

All other content, such as K-5 courses (Computer Science Fundamentals) and Hour of Code activities are compatible on iPads and Chromebooks in addition to all other modern tablets and laptop or desktop computers.

Mobile Phones

Our Hour of Code activities and CS Fundamentals courses can be completed on mobile phones. While these activities are usable, they are not optimized for a mobile phone experience and have some known limitations (e.g. touch targets may be small, accessory elements may display offscreen, and text may be difficult to input using the on-screen keyboard). The CS Discoveries, CS Principles, and Intro to App Lab courses are not usable on mobile phones.

Videos

We use YouTube to embed videos into Code.org and our online learning platform. For schools with YouTube blocked, we attempt to display a Code.org hosted video player instead.

Can you play this video?

Before you start Code.org's online courses, test playback for the video below to make sure you're good to go.

This is the player used throughout the curriculum. It will try to show the video through YouTube and, if YouTube is blocked, show the Code.org hosted video using our "fallback" player instead.

Video not playing?

If video does not work, you can email us at support@code.org.

However, you can still use our tutorials without video.

  1. We've made all our videos available for download together. If your school has low bandwidth, we recommend that you download videos and show them to students on a shared screen.
  2. Integrated into our tutorials, we've added a green download link icon for each video, allowing students to download individual tutorial videos.
  3. If all fails, there is a "Show Notes" tab that provides a storyboard equivalent of videos.

Special settings for Google Apps/G-Suite users

If you're a G-suite administrator, be sure to check what your restriction settings are for YouTube. If you have specified the "Strict Restricted YouTube Access" setting or if you see messages stating 'this video has been restricted', you can add our channel to the approved list of channels. See this guide from Google to learn about how to add our channel to the approved list. You can also see this guide to learn more about different settings and which is best for your classroom.

Still having trouble?

We'll help you out - just email us at support@code.org!