How to display Base64 images in HTML

Cover Image for How to display Base64 images in HTML
Matheus Mello
Matheus Mello
published a few days ago. updated a few hours ago

How to Display Base64 Images in HTML: A Complete Guide

Are you struggling to display a Base64 image inline on your website? Don't worry, you're not alone! Many developers face this issue, and we're here to help you find the solution. In this guide, we'll address the common issues and provide easy solutions to display Base64 images in HTML. So, let's dive right in!

The Problem

One of our readers recently asked, "I'm having trouble displaying a Base64 image inline. How can I do it?" To better understand the issue, let's take a look at the code snippet provided:

<!DOCTYPE html>
<html>
  <head>
    <title>Display Image</title>
  </head>
  <body>
    <img style='display:block; width:100px;height:100px;' id='base64image'
       src='data:image/jpeg;base64, LzlqLzRBQ... <!-- Base64 data -->' />
  </body>
</html>

The code seems correct, right? But unfortunately, the image is not displaying as expected. So, what went wrong?

The Solution

To display a Base64 image in HTML, you need to ensure that the Base64 data is correctly encoded and the image source is properly set. Follow these steps to solve the problem:

  1. Check Base64 Data: Verify that the Base64 data is valid and complete. Sometimes, when copying or transferring the code, a portion may get cut off, rendering the image unreadable. Make sure that the entire Base64 data is intact.

  2. Specify Mime Type: The src attribute in the img tag should include the correct mime type for the image. In the provided code snippet, the mime type is set as image/jpeg. Ensure that you've used the appropriate mime type for your image. For example, for a PNG image, it should be image/png.

  3. Confirm CSS Styles: Check the CSS styles applied to the img tag. In the given code, the image is set to have a width and height of 100 pixels. Ensure that these styles suit your requirements and don't conflict with any other styles in your HTML or CSS file.

  4. Inline CSS: If you're including the CSS styles inline (within the style attribute), ensure that there are no syntax errors. One missing character or mistyped attribute can break the image display. Double-check your CSS code for any mistakes.

Once you've gone through these steps and made the necessary adjustments, your Base64 image should display successfully in your HTML page.

Call-to-Action

We hope this guide helped you resolve the issue of displaying Base64 images in HTML. If you found it helpful, don't forget to share it with other developers who might be facing the same problem.

Have you encountered any other challenges related to web development? Let us know in the comments below, and we'll be happy to create more useful guides for you! Happy coding! 😊🎉


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