src

The src attribute specifies the location of a digital source, which is typically a URL or a file path. It is required for HTML elements like <img> so that they can appear on a website or application.

Syntax

<element src="URL_or_file_path">

Parameters:

• src: Specifies the location of the resource. This can be a URL (absolute or relative) or a file path pointing to the resource.

Return value:

The src attribute doesn’t “return” anything as it’s not a function or method but an attribute. Instead, it points to a digital source (e.g., image, video, audio, etc.) and instructs the browser to load that resource into the HTML element.

src can also be used in the following elements:

Example 1: Displaying an Image

The following code snippet below shows how the <img> element uses the src attribute to display an image called logo.png:

<img src="logo.png" alt="Codecademy logo" />

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This will display the following image:

Note: When using online images or images from the folders in an IDE workspace, always add alt text at the end of the <img> element just in case the browser has trouble finding them.

Example 2: Embedding an External Video

The example below shows how a video element uses the src attribute in an embedded <source> element to display a video called codey.mp4 from an external source:

<video controls autoplay muted width="560" height="315">
  <source src="codey.mp4" type="video/mp4" />
  Your browser does not support the video tag.
</video>

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The gif here shows how the video would be displayed:

Example 3: YouTube Video Embedding using iframe element

Here’s an example of embedding a YouTube video using the iframe element:

<iframe
  width="560"
  height="315"
  src="https://www.youtube.com/embed/0QHaxrUkSEU?list=PLFzsFUO-y0HCyF0smKSi0WMhbMR2mqz2V"
  frameborder="0"
  allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture"
  allowfullscreen
></iframe>

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The following gif showcases how the output of this code would look like:

In this example, an embedded YouTube video is added to the webpage using the iframe element. The src attribute in the <iframe> tag contains the YouTube video URL, which points to the embedded version of the video.

Frequently Asked Questions

1. What is the difference between URL and src in HTML?

• URL (Uniform Resource Locator): A URL is the address of a resource on the Internet. It specifies the location of a resource (like an image, video, or webpage) using a protocol (e.g., http://, https://, ftp://) followed by the resource’s location.
• src (Source) Attribute: The src attribute in HTML specifies the source location of embedded content (such as an image, video, or audio file). It points to a resource’s URL or a local file path. The src attribute itself does not define a location on its own, but instead uses a URL to point to the location of an external or internal resource.

2. When to use src in HTML?

You use the src attribute when you want to embed external or internal content into an HTML page. Common scenarios include:

• Images: To display an image using the <img> tag.

  <img src="image.jpg" alt="Image description" />
  
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