What is a Base64 Image string?

It is an image file encoded as a text string, allowing you to embed image data directly in HTML src attributes or CSS stylesheets.

Why should I embed images as Base64?

Embedding images reduces the number of HTTP requests required to load a web page, which can speed up page loading for small icons.

Yes. Base64 encoding increases file size by roughly 33% compared to binary format.

We support PNG, JPG, JPEG, GIF, SVG, WebP, and ICO conversion.

Yes. Conversion is completed entirely inside your browser using the HTML5 FileReader API. Your images are never sent to any server.

Yes, paste the raw string in the decoder panel to render the preview and download the converted image file.

A data URI scheme is a URI standard that allows inserting media directly into document tags, formatted as data:[mediatype];base64,[data].

We do not recommend Base64 for large images because the increased text payload can slow down HTML rendering.

It can help SEO indirectly by improving page load speeds for icons and small assets, reducing HTTP requests.

Yes. You can use Base64 strings inside background-image url() tags directly in your stylesheet.

Drag & drop your image file here, or click to browse

Supports PNG, JPG, WEBP, GIF, SVG (Max 5MB)

Paste Base64 Image String