---
title: Get started with ASP.NET Core
author: rick-anderson
description: A quick tutorial that creates and runs a simple Hello World app using ASP.NET Core. 
ms.author: riande
ms.custom: mvc
ms.date: 12/11/2018
uid: getting-started
---
# Tutorial: Get started with ASP.NET Core

This tutorial shows how to use the .NET Core command-line interface to create an ASP.NET Core web app.

You'll learn how to:

> [!div class="checklist"]
> * Create a web app project.
> * Enable local HTTPS.
> * Run the app.
> * Edit a Razor page.

At the end, you'll have a working web app running on your local machine.

![Web app home page](_static/home-page.png)

## Prerequisites

* [.NET Core 2.2 SDK](https://www.microsoft.com/net/download/all)

## Create a web app project

Open a command shell, and enter the following command:

```console
dotnet new webapp -o aspnetcoreapp
```

## Enable local HTTPS

Trust the HTTPS development certificate:

# [Windows](#tab/windows)

```console
dotnet dev-certs https --trust
```

The preceding command displays the following dialog:

![Security warning dialog](_static/cert.png)

Select **Yes** if you agree to trust the development certificate.

# [macOS](#tab/macos)

```console
dotnet dev-certs https --trust
```

The preceding command displays the following message:

*Trusting the HTTPS development certificate was requested. If the certificate is not already trusted we will run the following command:* `'sudo security add-trusted-cert -d -r trustRoot -k /Library/Keychains/System.keychain <<certificate>>'`.  
*This command might prompt you for your password to install the certificate on the system keychain.

Password:*

Enter your password if you agree to trust the development certificate.

# [Linux](#tab/linux)

See the documentation for your Linux distribution on how to trust the HTTPS development certificate.

---

## Run the app

Run the following commands:

```console
cd aspnetcoreapp
dotnet run
```

Browse to [https://localhost:5001](https://localhost:5001). Click **Accept** to accept the privacy and cookie policy. This app doesn't keep personal information.

## Edit a Razor page

Open *Pages/Index.cshtml* and modify the page with the following highlighted markup:

[!code-cshtml[](sample/index.cshtml?highlight=9)]

Browse to [https://localhost:5001](https://localhost:5001), and verify the changes are displayed.

## Next steps

In this tutorial, you learned how to:

> [!div class="checklist"]
> * Create a web app project.
> * Enable local HTTPS.
> * Run the project.
> * Make a change.

To learn more about ASP.NET Core, see the introduction:

> [!div class="nextstepaction"]
> <xref:index>