Base64 Image Encoder
Encode images directly into Base64 for inline HTML and CSS.
Free Online Base64 Image Encoder
Every time a browser loads a webpage, it has to make separate HTTP requests to the server for every single image. For small icons, logos, and UI patterns, this can severely slow down your page speed. Our free Base64 Image Encoder translates your visual images directly into an ASCII text string, allowing you to embed the image directly inside your HTML or CSS code.
How to Convert Images to Base64
- Upload Your Graphic: Drag and drop your JPG, PNG, GIF, SVG, or WebP file into the upload zone. The encoding happens instantly within your browser.
- Select Output Format: Choose how you want to use the generated string:
- Data URI: The standard format containing the mime-type prefix.
- HTML: Automatically wraps the string in a standard
<img>tag for your frontend. - CSS: Formats the string as a
background-imageproperty for your stylesheets. - Raw Base64: Strips out the Data URI prefix, providing just the pure encoded text string.
- Copy and Paste: Click the green copy button and paste the code directly into your code editor.
When Should You Use Base64?
Due to how the encoding algorithm works, a Base64 string is approximately 33% larger in file size than the original binary image. Because of this, you should never use a Base64 Image Encoder for large photographs or hero images, as it will drastically bloat your HTML file. This tool is strictly recommended for micro-graphics, UI icons, loading spinners, and small background patterns where the benefit of eliminating an HTTP request outweighs the slight increase in file size.