When you're just starting with Shopify, you can customize themes directly from the Shopify Admin using the built-in code editor. While this works for small changes, professional developers usually prefer working on their own computer using modern development tools.

This is where Shopify CLI, or Command Line Interface, becomes useful.

Shopify CLI is an official tool that helps developers create, test, customize, and deploy Shopify themes and apps from their local machine. It speeds up development, makes testing easier, and supports modern workflows.

In this lesson, you'll learn what Shopify CLI is, why developers use it, and the most common commands you'll use while building Shopify projects.

What is Shopify CLI?

Shopify CLI is a command-line tool provided by Shopify.

It allows developers to:

• Create new Shopify projects
• Develop themes locally
• Build Shopify apps
• Preview changes instantly
• Connect to development stores
• Upload themes
• Publish completed work

Instead of editing files directly in the browser, developers work with local files using their favorite code editor.

Why Use Shopify CLI?

Imagine you're building a custom Shopify theme.

Without Shopify CLI, your workflow might look like this:

• Edit a file in the browser.
• Save the file.
• Refresh the website.
• Repeat the process.

With Shopify CLI:

• Files are edited locally.
• Changes appear almost instantly in a preview.
• You can use Git for version control.
• Development becomes much faster.

This is why Shopify CLI is the preferred tool for professional developers.

How Shopify CLI Works

The basic workflow is simple.

Developer Writes Code
          |
          v
Shopify CLI
          |
          v
Development Store
          |
          v
Preview in Browser

Every time you save a file, Shopify CLI updates the preview automatically, making development more efficient.

Installing Shopify CLI

Before using Shopify CLI, you'll typically need:

• A Shopify Partner account
• A development store
• Node.js installed
• Git (recommended)
• A code editor such as Visual Studio Code

Once everything is set up, you can install Shopify CLI and connect it to your development store.

Common Shopify CLI Commands

Here are some commands you'll use frequently.

Log in to Shopify

shopify auth login

This connects your local computer to your Shopify account.

Create a New Theme

shopify theme init

This creates a new Shopify theme project on your computer.

Start Local Development

shopify theme dev

This starts a local development server.

As you edit your theme files, the preview updates automatically.

Upload Theme Changes

shopify theme push

This uploads your local changes to the connected Shopify store.

Download an Existing Theme

shopify theme pull

This downloads an existing Shopify theme from the store to your local machine.

Local Development

One of the biggest advantages of Shopify CLI is local development.

Instead of editing files online, you can:

• Use Visual Studio Code.
• Search files quickly.
• Debug code more easily.
• Use extensions and formatting tools.
• Test changes before publishing.

This creates a smoother and more productive workflow.

Live Preview

Shopify CLI provides a live preview of your work.

When you save a file:

• The preview refreshes automatically.
• You can immediately see the changes.
• No manual uploading is required during development.

This saves a significant amount of time, especially when working on large themes.

Working with Git

Professional Shopify developers often combine Shopify CLI with Git.

Git helps developers:

• Track changes.
• Restore previous versions.
• Collaborate with team members.
• Create feature branches.
• Manage releases.

Using Git alongside Shopify CLI is considered a best practice for theme development.

Shopify CLI for App Development

Shopify CLI is not limited to themes.

Developers also use it to create Shopify apps.

It helps with:

• Creating app projects.
• Running development servers.
• Managing app extensions.
• Testing locally.
• Deploying applications.

This makes Shopify CLI a complete development tool for both themes and apps.

Real-World Example

Imagine a company hires you to redesign its Shopify store.

Instead of editing files directly in the Shopify Admin, you:

• Download the existing theme.
• Open it in Visual Studio Code.
• Start Shopify CLI.
• Customize the homepage.
• Add new sections.
• Test everything locally.
• Upload the completed theme.
• Publish the updated version.

This workflow is faster, safer, and easier to manage than editing files directly in the browser.

Best Practices

When using Shopify CLI:

• Develop themes locally instead of editing production files.
• Test every change before publishing.
• Use Git to track your work.
• Keep your Shopify CLI version updated.
• Organize your project files clearly.
• Use development stores for testing.
• Back up important themes before deployment.

These practices help you build reliable Shopify projects and reduce the risk of errors.

Why Shopify CLI Matters

Shopify CLI is an essential tool for professional Shopify development. It provides a modern development environment that improves productivity, testing, and collaboration.

Whether you're building custom themes, creating Shopify apps, or working with a team, Shopify CLI helps you develop faster and manage your projects more efficiently.

As you continue learning Shopify, you'll use Shopify CLI regularly alongside HTML, CSS, JavaScript, Liquid, Git, and APIs.

Key Takeaways

• Shopify CLI is Shopify's official command-line tool for theme and app development.
• It allows developers to build, test, preview, and deploy projects from their local computer.
• Common commands include logging in, creating themes, running a development server, downloading themes, and uploading changes.
• Local development provides faster workflows and easier debugging than editing files directly in the Shopify Admin.
• Shopify CLI works well with Git and modern code editors such as Visual Studio Code.
• Learning Shopify CLI is an important step toward becoming a professional Shopify developer because it supports efficient, scalable, and production-ready development workflows.