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Using GitHub Codespaces with GitHub Classroom

You can use GitHub Codespaces as the preferred editor in your assignments to give students access to a browser-based Visual Studio Code environment with one-click setup.

Organization owners who are admins for a classroom can enable GitHub Codespaces for their organization and integrate GitHub Codespaces as the supported editor for an assignment. For more information on classroom admins, see "About management of classrooms."

Codespaces is available to use with GitHub Classroom for organizations that use GitHub Team. To find out if you qualify for a free upgrade to GitHub Team, see "Apply for an educator or researcher discount."


GitHub Codespaces is an instant, cloud-based development environment that uses a container to provide you with common languages, tools, and utilities for development. Codespaces is also configurable, allowing you to create a customized development environment that is the same for all users of your project. For more information, see "GitHub Codespaces overview."

Once Codespaces is enabled in an organization or enterprise, users can create a codespace from any branch or commit in an organization or enterprise repository and begin developing using cloud-based compute resources. You can connect to a codespace from the browser or locally using Visual Studio Code. To get started with Codespaces, see "Quickstart for Codespaces." To learn more about how Codespaces works, see "Deep dive into Codespaces."

Setting Codespaces as the preferred editor for an assignment in GitHub Classroom assignments, is beneficial for both students and teachers. Codespaces is a good option for students using loaned devices or without access to a local IDE setup, since each codespace is cloud-based and requires no local setup. Students can launch a codespace for an assignment repository in Visual Studio Code directly in their browser, and begin developing right away without needing any further configuration.

For assignments with complex setup environments, teachers can customize the dev container configuration for a repository's codespaces. This ensures that when a student creates a codespace, it automatically opens with the development environment configured by the teacher. For more information on dev containers, see "Introduction to dev containers."

Note: Individual codespaces are automatically deleted if they are stopped and left unused for a prolonged period. For more information, see "Configuring automatic deletion of your codespaces."

About the Codespaces Education benefit for verified teachers

The Codespaces Education benefit gives verified teachers a free monthly allowance of Codespaces hours to use in GitHub Classroom. The free allowance is estimated to be enough for a class of 50 with 5 assignments per month, on a 2 core machine with 1 codespace stored per student.

Note: The Codespaces Education benefit is currently in public beta and subject to change. During the beta release, your organization will not be charged if you exceed the free allowance.

To become a verified teacher, you need to be approved for an educator or teacher benefit. For more information, see "Applying for an educator or teacher benefit."

After you have confirmation that you are a verified teacher, visit GitHub Global Campus for Teachers to upgrade the organization to GitHub Team. For more information, see GitHub's products.

If you are eligible for the Codespaces Education benefit, when you enable Codespaces in GitHub Classroom for your organization, GitHub automatically adds a Codespace policy to restrict machine types for all codespaces in the organization to 2 core machines. This helps you make the most of the free Codespaces usage. However, you can change or remove these policies in your organization settings. 詳しい情報については「マシンタイプへのアクセス制限」を参照してください。

When the Codespaces Education benefit moves out of beta, if your organization exceeds their free allowance for Codespaces usage, your organization will be billed for additional usage. 詳しい情報については、「Codespacesの支払いについて」を参照してください。

Enabling Codespaces for your organization

Codespaces is available to use with GitHub Classroom for organizations that use GitHub Team. If you are eligible for the Codespaces Education benefit, you must enable Codespaces through GitHub Classroom, instead of enabling it directly in your organization settings. Otherwise, your organization will be billed directly for all usage of Codespaces.

Enabling Codespaces for an organization when creating a new classroom

  1. GitHub Classroomにサインインしてください。

  2. [New classroom] をクリックします。

    [New classroom] ボタン

  3. Organizationのリスト中で、クラスルームに使いたいOrganizationをクリックしてください。 Organizations that are eligible for Codespaces will have a note showing that they are eligible. あるいは、新しいOrganizationを作成することもできます。 詳しい情報については、「新しい Organization をゼロから作成する」を参照してください。

    Choose organization for classroom with codespaces eligibility

  4. In the "Name your classroom" page, under "Codespaces in your Classroom", click Enable. Note that this will enable Codespaces for all repositories and users in the organization.

    Enable Codespaces for org in "Setup classroom basics" page

  5. When you are ready to create the new classroom, click Create classroom.

Enabling Codespaces for an organization via an existing classroom

  1. GitHub Classroomにサインインしてください。

  2. クラスルームのリストで、表示したいクラスルームをクリックしてください。 Organizationのクラスルームのリストにあるクラスルーム

  3. クラスルーム名の下でSettings(設定)をクリックしてください。 クラスルームの"Settings"タブ

  4. Under "GitHub Codespaces", click Enable. This will enable Codespaces for all repositories and users in the organization. A new Codespace policy is also added to restrict machine types for all codespaces in the organization to 2 core machines.

    Enable Codespaces for org in existing classroom settings

You can use the same methods as above to disable Codespaces for your organization as well. Note that this will disable Codespaces for all users and repositories in the organization.

Configuring an assignment to use Codespaces

To make Codespaces available to students for an assignment, you can choose Codespaces as the supported editor for the assignment. When creating a new assignment, in the "Add your starter code and choose your optional online IDE" page, under "Add a supported editor", select GitHub Codespaces from the dropdown menu.

Select Codespaces as supported editor for assignment

If you use a template repository for an assignment, you can define a dev container in the repository to customize the tools and runtimes available to students when they launch a codespace to work on the assignment. If you do not define a dev container, GitHub Codespaces will use a default configuration, which contains many of the common tools that your students might need for development. For more information on defining a dev container, see "Add a dev container configuration to your repository."

Launching an assignment using Codespaces

When a student opens an assignment, the repository's README file includes their teacher's recommendation of the IDE they should use for the work.

Screenshot of the Codespaces note in the README for a student assignment repository

Students can launch a new or existing codespace by clicking the Code button on the main page of the assignment repository, then selecting the Codespaces tab. 詳しい情報については、「codespace を作成する」を参照してください。

Launch new codespace in assignment repository

Teachers can view each student's codespace for an assignment in the assignment overview page. You can click on the Codespaces icon on the right side of each student row to launch the codespace.

Teacher assignment overview with student's codespaces

When you connect to a codespace through a browser, auto-save is enabled automatically. If you want to save changes to the repository, you will need to commit the changes and push them to a remote branch. If you leave your codespace running without interaction for 30 minutes by default, the codespace will timeout and stop running. Your data will be preserved from the last time you made a change. For more information on the lifecycle of a codespace, see "Codespaces lifecycle."