Image to Base64

Convert an image into a Base64 data URL for HTML, CSS, or API payloads.

Drop your image here

Choose Image

Any common image format

Conversion happens locally.

HOW IT WORKS

Convert an image into Base64 text.

Load an image and generate a Base64 data URL for use in HTML, CSS, or code.

1. Choose an image
Upload the image you want to encode.
2. Generate Base64
The image is converted into a text-based data URL in your browser.
3. Copy or download
Copy the generated value or save it for your project.

Convert Images to Base64 Online

Convert images to Base64 online with Toolcribz and generate encoded image data for your web development projects. An image-to-Base64 converter transforms an image file into text that can be used as a Base64 data URL.

Use the generated data URL when embedding images in HTML, adding background images in CSS, preparing JavaScript data, or creating compatible API payloads. Select an image, convert it, and copy the output or download it as a text file. Conversion happens locally in your browser.

What Is Image to Base64 Conversion?

Base64 represents binary image data as text using a set of printable characters. A data URL combines that encoded data with a prefix that describes its media type and encoding, for example:

data:image/png;base64,BASE64_DATA_HERE

How to Use Base64 Images in HTML and CSS

Replace the example data with the generated data URL. Use the correct media type for your image format.

HTML image

<img src="data:image/png;base64,BASE64_DATA_HERE" alt="Example image" />

CSS background

.example {
  background-image: url("data:image/png;base64,BASE64_DATA_HERE");
}

Use Base64 Images in API Requests

Some APIs accept Base64-encoded images or data URLs in JSON and other request payloads, while others expect a file upload or a regular image URL. Confirm the API's accepted format and payload size limits before using the generated output.

Keep Base64 Image Size in Mind

Base64 encoding typically makes binary data about one-third larger before other overhead. It can be convenient for small images, but larger images are often better served as regular image files or URLs. Base64 encoding does not compress or improve image quality.

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Frequently Asked Questions

What is an image to Base64 converter?

It converts an image file into Base64-encoded text. This tool creates a data URL, which includes a media type and Base64 encoding prefix along with the encoded image data.

How do I convert an image to Base64 online?

Choose an image in the Toolcribz converter. The generated Base64 data URL appears in the output box, where you can copy it or download it as a text file.

What is the difference between a Base64 string and a data URL?

A Base64 string is the encoded data. A data URL also includes a prefix that identifies the media type and encoding, such as data:image/png;base64,.

Can I use Base64 images in HTML?

Yes. A data URL can be used as the src value of an HTML img element when the browser supports the image media type.

Can I use Base64 images in CSS?

Yes. A supported data URL can be used in CSS properties such as background-image.

Can Base64 images be used in API requests?

Some APIs accept Base64-encoded image data in JSON or other request bodies. Check the API's expected format and size limits before sending it.

Does converting an image to Base64 reduce its file size?

No. Base64 is an encoding method, not image compression. It typically increases the data size by roughly one-third before additional overhead.

Is my image uploaded when I convert it?

No. The converter reads the selected file in your browser using FileReader; it does not upload the image to a server.