Image to Base64 Converter
Convert PNG, JPG, GIF, WebP, SVG, and BMP images to Base64 string, Data URI, HTML img tag, and CSS background-image code. Free, instant, and 100% in-browser—no upload to server, no signup required.
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PNG · JPG · GIF · WebP · SVG · BMP · TIFF · ICO
What is Image to Base64 Converter?
Base64 is a text encoding scheme that converts binary data—like image files—into a string of ASCII characters. This allows images to be embedded directly into HTML, CSS, JSON, or XML without referencing an external file URL.
An Image to Base64 converter reads your image file and outputs the Base64 Data URI, HTML img tag, and CSS background-image code—ready to paste into your project. Common searches include png to base64, jpg to base64, svg to base64, and base64 image encoder for web development.
How to Convert Image to Base64 Online
- Upload your image by dragging it into the drop zone or clicking to browse.
- The converter processes your image directly in the browser.
- Click Code to expand the panel and view both image and CSS code.
- Click Image to instantly copy the HTML img tag to clipboard.
- Click CSS to instantly copy the CSS background-image property.
When Should You Use Base64 Images?
- Embedding small icons, logos, or UI assets inline to reduce HTTP requests.
- Storing image data in JSON APIs, databases, or configuration files.
- Single-page applications where assets need to be self-contained.
- Email templates that require inline images without external URLs.
- Canvas and data processing workflows in JavaScript applications.
Base64 Output Formats Explained
Data URI (Code)
The full data:image/png;base64,… URI. Use this anywhere a URL is accepted—including img src, CSS url(), or JavaScript Image objects.
HTML <img> Tag (Image)
A ready-to-paste HTML img tag with the Data URI as the src. Click Image to instantly copy and paste into your HTML file.
CSS background-image (CSS)
A ready-to-use CSS property with the Data URI embedded. Click CSS to instantly copy and paste into your stylesheet.
Is Image to Base64 Converter Safe?
Yes. All conversion happens entirely in your browser using the FileReader API. No image data is sent to any server—your files never leave your device.
This also means the tool works offline. Once the page loads, you can convert images without an active internet connection.
Frequently Asked Questions (FAQs)
What is Base64 encoding for images?
Base64 encoding converts binary image data into a text string. This lets you embed images directly in HTML, CSS, or JSON without needing a separate file URL.
How do I use a Base64 image in HTML?
Use the Data URI as the src of an img tag: <img src="data:image/png;base64,YOUR_STRING_HERE" />
How do I use a Base64 image in CSS?
Use it as a background-image value: background-image: url('data:image/png;base64,YOUR_STRING_HERE');
Which image formats can I convert to Base64?
PNG, JPG, JPEG, GIF, WebP, BMP, SVG, TIFF, and ICO are all supported.
Is Base64 image conversion safe and private?
Yes. All conversion happens in your browser. No image data is uploaded to any server.