What is a pure Base64 Image?
Base64 is an encoding algorithm that translates binary data (like an image file) into a string of standard ASCII text. When you convert an image to Base64, you are essentially turning a visual graphic into a long block of code that web browsers and applications can read natively.
Base64 vs Data URI
A pure Base64 string looks like iVBORw0KGgoAAA.... However, to use it directly in a browser (like inside an HTML image tag), you usually need to turn it into a Data URI by adding a prefix that tells the browser what file type it is, such as data:image/png;base64,. This specific page focuses on extracting the pure, raw Base64 string without the prefix.
Why encode images to Base64 locally?
This tool utilizes HTML5 Canvas and the FileReader API to generate your Base64 encoded strings entirely within your own web browser. Because your image files are never uploaded to our servers, you are guaranteed 100% privacy and security—making this the perfect tool for unreleased UI designs, proprietary logos, and sensitive company assets.