Keepdesk

Encode Small Images into Inline Base64 Data URLs for CSS

Turn small icons and background graphics into Base64 Data URLs to embed directly within CSS stylesheets or HTML documents. Eliminate external image requests with zero setup.

URL-safe (+/ → -_) File → data URL

Step by step

1
Select Image Asset
Choose a small PNG, SVG, or JPG graphic under 5 MB.
2
Generate Data URL
Allow the local engine to create the Base64 Data URL string.
3
Copy to Clipboard
Click the copy button and paste into your CSS `background-image` property.

Instant File-to-Data-URL Conversion

Drag and drop any image file up to 5 MB to instantly generate a standard `data:image/...;base64,...` string ready to be copied into your stylesheets.

UTF-8 Safe and In-Browser

The encoding process converts binary or textual assets locally without transmitting assets over external servers, maintaining asset confidentiality.

Guides by situation

Base64 Encode & Decode →

Generate URL-Safe Base64 Strings for Query Parameters and APIsEncode text to URL-safe Base64 (- and _ substitutions, no padding) and…

Frequently asked

What is the file size ceiling for conversion?

Files up to 5 MB are supported to ensure smooth browser responsiveness and fast rendering.

Is Base64 encoding equivalent to encryption?

No, Base64 is an open representation encoding scheme, not an encryption method, as clearly noted on the page.