Convert Image To Base64 String

About This Tool

Convert your images to Base64 strings for embedding directly in HTML, CSS, or JavaScript. Perfect for reducing HTTP requests or when you need to include images in your code.


Supports JPG, PNG, GIF, WEBP, and SVG formats. Max file size: 5MB.

Drag & Drop to Upload

Supports JPG, PNG, GIF, WEBP, SVG

Usage Tips
  • HTML Usage: Use the <img src="data:image/png;base64,..."> format to embed images directly in your HTML
  • CSS Usage: Use background-image: url('data:image/png;base64,...') for CSS backgrounds
  • Performance: Base64 images are ~33% larger than binary files. Best for small images or when reducing HTTP requests is critical
  • Security: Base64 images are visible in your source code. Don't use for sensitive images

Why Convert Images to Base64?

Base64 encoding turns binary image data into a text string that can be embedded directly in your HTML, CSS, or JavaScript. This technique is especially useful when you want to:

Reduce HTTP Requests

Embed small icons or UI elements directly in your stylesheet, eliminating extra server round trips.

Simplify Distribution

Package images in a single HTML/CSS file – perfect for demos, email templates, or offline apps.

Offline Capabilities

Store images inside your code so they work without network access (e.g., Progressive Web Apps).

Email Compatibility

Embed images in HTML emails where external images are often blocked by default.

Note on file size: Base64 strings are about 33% larger than the original binary. Best for images under 100KB.

How It Works

1

Upload an Image

Drag & drop or click to select any JPG, PNG, GIF, WEBP, or SVG (max 5MB).


2

(Optional) Adjust Compression

Enable compression to reduce file size. Lower quality = smaller string.


3

Copy & Use

Copy the Base64 string, HTML img tag, or CSS url. Use them directly in your project.

Frequently Asked Questions