Convert Image to Base64

Online image converter to Base64 - embed graphics directly in HTML and CSS

Image converter to Base64 allows you to convert PNG, JPG, GIF or SVG files into a string of Base64 characters and a ready Data URI, which you can paste directly into the HTML code or CSS style sheet. Thanks to this, you reduce the number of HTTP requests, speed up page loading and have full control over how and where your graphics are loaded.

Image to Base64 converter Image to Base64 online Data URI for images in CSS Optimizing the number of HTTP requests Faster website loading

Convert image to Base64 Check the most frequently asked questions

Table of Contents

1. Why Convert Image to Base64
2. What is Base64 Encoded Image and Data URI
3. How Our Image to Base64 Converter Works
4. Step-by-Step Instruction: Image to Base64
5. Examples of Using Base64 Images in HTML and CSS
6. Performance and Page Load Time Benefits
7. When to Use Base64 and When to Stick to Files
8. FAQ - Questions about Converting an Image to Base64
9. Summary and Next Steps

Why Convert an Image to Base64

Reducing your website's loading time has a direct impact on the overall user experience. The fewer HTTP requests the browser has to make, the faster the user will see the finished page. This is especially important on mobile devices and with weaker connections, where each additional request causes additional delay.

One way to optimize is to reduce the number of separate image files, scripts, and stylesheets. For small icons, header logos, or backgrounds for small interface elements, you can simply embed them directly in HTML or CSS as Base64 code. This means that the browser does not have to open an additional connection to download such a resource.

This free image to Base64 conversion service generates ready-made code that you can paste directly into your HTML document or CSS stylesheet. You don't have to manually write Data URI headers or worry about proper encoding. You get a ready-made fragment that simply works.

What is a Base64 image and the Data URI scheme

A Base64 encoded image is a regular image file converted into a string of text characters. This string can be used in the so-called Data URI scheme, which allows you to embed in-line data directly into the page code. The browser treats such an embedded image in exactly the same way as if it were downloading it from a separate file on the server.

The Data URI scheme has a simple structure. Indicates the type of data and how it is encoded, and then contains the actual Base64 string. Everything fits into one address, which can be used, for example, in thesrcattribute in thetag or as thebackground-imagevalue in