Image to Base64 Converter

Convert images to Base64 encoded strings. Useful for embedding images directly in HTML, CSS, or JavaScript files without external HTTP requests.

Upload Image

Max file size: 5MB

Drag & drop your image file here

Accepted formats: JPEG, PNG, SVG, GIF, WebP

- or -

Base64 Conversion Result
Original Image
Original Image
Size: -
Dimensions: -
Output Options
Base64 Output
Code Example

How to Use Image to Base64 Converter

  1. Upload an image by dragging and dropping or using the file browser.
  2. Your image will be automatically converted to Base64 format.
  3. Choose your preferred output format (Data URL or Base64 Only).
  4. Select how you want to include the code (Raw, HTML, CSS, or JavaScript).
  5. Copy the generated code to your clipboard with one click.
  6. Use the Base64 string in your web development projects.

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used to embed image data directly in HTML, CSS, or JavaScript files without requiring external HTTP requests.

Reduced HTTP Requests

By embedding images as Base64 strings directly in your code, you eliminate additional HTTP requests, which can improve initial page load times for small images.

Single File Deployment

Include images directly in your CSS or HTML files for simplified deployment and fewer dependencies, especially useful for email templates.

Offline Applications

Perfect for applications that need to work offline, as all image resources are embedded directly in the application code.

Important Considerations

Base64 encoding increases the file size by approximately 33%. It's best used for small images, icons, or simple graphics under 10KB, not large photographs.

Usage Examples

HTML Example

Embed an image directly in HTML without an external file:

<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA..." alt="Embedded Image">
CSS Example

Add background images directly in your CSS:

.logo {
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA...');
    background-repeat: no-repeat;
    height: 50px;
    width: 100px;
}
JavaScript Example

Create image elements dynamically with JavaScript:

const img = new Image();
img.src = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUA...';
document.body.appendChild(img);

Frequently Asked Questions

Base64 encoding allows you to embed images directly in HTML, CSS, or JavaScript files. This reduces the number of HTTP requests needed to load a page, which can improve performance for small images. It's also useful for creating self-contained files that don't depend on external resources, such as email templates or offline applications.

  • Data URL includes the MIME type prefix (e.g., data:image/png;base64,) before the actual Base64 string. This format is ready to use in HTML img tags or CSS url() functions.
  • Base64 Only gives you just the encoded string without any prefix. This is useful when you need only the encoded data, such as when working with APIs or systems that expect raw Base64.

Yes, there are several considerations:
  • Base64 encoding increases file size by approximately 33% compared to the original binary.
  • Embedded images can't be cached separately by browsers, unlike external image files.
  • Large Base64 strings can significantly increase HTML/CSS file sizes, potentially slowing down initial parsing.
  • For larger images (over 10KB), it's usually more efficient to use separate image files.
Base64 is best for small images, icons, or simple graphics that are used throughout your site.

Yes, your data is completely safe. Our converter processes your images directly in your browser using JavaScript. Your images are never uploaded to our servers, ensuring complete privacy and security.

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