Image to Base64

What is a Base64 image?

A Base64 data URI encodes an image directly as text, so you can embed it inside an HTML, CSS, or JSON file instead of linking to a separate image file. It starts with data:image/png;base64, followed by the encoded image data. This saves an HTTP request, which can speed up loading for small images like icons and logos.

How to use this tool

• Upload an image — the Base64 data URI is generated instantly
• Pick an output format — raw data URI, a ready-to-use <img> tag, or a CSS background-image snippet
• Copy — one click copies the result to your clipboard

When to use Base64 images

• Small icons and logos — embed them to remove an extra network request
• Email templates — inline images that don't rely on external hosting
• Single-file pages — bundle everything into one HTML file

Keep in mind Base64 makes data about 33% larger, so it's best for small images. For large photos, a normal image file is more efficient — and you can compress it first.