Image to Base64

Free browser-based tool. Use the controls below to get started.

QUICK GUIDE

Encode an image as a Base64 data URL

Choose an image and generate its Base64 representation. Data URLs can become very long, especially for large images, so use small assets where possible and avoid sharing encoded content that contains private images.

Select the image to encode

Follow the fields and controls shown in the tool above.

Generate and review the encoded text

Check the selected settings and input values before continuing.

Copy the result and use it only where a data URL is supported

Review the output before copying, saving, or sharing it.

Processing behavior depends on the tool and browser. Do not use confidential or sensitive content unless you have confirmed how that specific tool handles it.

Read the full guide

ABOUT THIS TOOL

About the Image to Base64

Base64 turns binary data such as an image into plain text. The HandyTools Image to Base64 tool reads the image you choose and produces a Base64 data URL that you can copy and paste into HTML, CSS, JSON or an email template.

Embedding an image this way avoids a separate file request, which suits small icons and tiny graphics. The encoding is done in your browser, so the image is not uploaded by this tool.

Tips for best results

Base64 text is about a third larger than the original file, so use it for small images only.
A data URL starts with the image type, for example data:image/png;base64, followed by the encoded text.
For large photos, a normal image file is usually faster and easier to cache.

Frequently asked questions

What is a Base64 data URL?

It is a piece of text that contains the image itself, so a browser can show the picture without loading a separate file.

When should I use Base64 images?

They work well for very small images or when you must embed an image in text, such as in an email template or a single HTML file.

Is the image uploaded?

No. The conversion runs in your browser.