You Need an Image Inline but the CDN Is Not Set Up Yet

Need a Data URL from an Image?

You are building a prototype and need an image inline in your CSS or HTML. You could host it on a CDN, but that is overkill for a demo. You could base64-encode it in the terminal, but that means finding the right flag, handling the output, and pasting a wall of text without knowing if it is correct.

OnliTools Image to Base64 Converter

OnliTools Image to Base64 Converter turns any image into a Data URL, an HTML <img> element, or a CSS background string — directly in your browser. You upload the image, and it gives you the exact code you need, ready to copy. The processing stays on your device. Nothing uploads. Nothing leaves.

How to Use It

1. Go to onlitools.com/image-to-base64.

1. Upload your image. Drag and drop or click to select a file from your device.

1. Choose the output format: Data URL, HTML <img>, or CSS background.

1. Copy the generated code and paste it into your project.

Great For

• Prototyping — inline images without setting up a CDN or file server
• CSS styling — embed small icons and textures as base64 backgrounds
• Email templates — avoid external image hosting by inlining images directly

Wrap Up

No terminal, no install, no upload to a server. OnliTools Image to Base64 Converter gives you the exact code you need in seconds.