Image to Base64 Converter – PNG, JPG, SVG to Data URI
Drag and drop your image and get the Base64 Data URI instantly. Supports PNG, JPG, SVG and WEBP, with live preview, original size and character count. Copy the code or download it as a .txt file. 100% free, private and works fully in your browser.
Image to Base64 Converter
Fast • 100% Client-Side • For CSS & HTML Devs 🚀
Drag & Drop Image
PNG, JPG, SVG, WEBP • Max 10MB🔍 You Can Also Visit More Tools Categories
What Is an Image to Base64 Converter?
An Image to Base64 converter changes an image file into a text string called a Base64 Data URI, for example data:image/png;base64,iVBORw0KGgo.... You can place this string directly inside your HTML or CSS, so the browser shows the image without making a separate file request. Our tool does this instantly in your browser, with no upload to any server.
Key Features
Drag & Drop Upload
Drop your image into the box or click to browse. Supports PNG, JPG, SVG and WEBP.
Instant Base64 Data URI
The full Data URI is generated the moment the image loads. No convert button needed.
Copy & Download
Copy the Base64 code in one click, or save it as a .txt file for later use.
Live Preview & Stats
See your image preview, its original size and the total Base64 character count.
Horizontal Scroll Output
Long Base64 code stays on one line with a horizontal scroll, so it never breaks or wraps.
Private & Mobile Friendly
Everything runs in your browser. Your image is never uploaded. Works on phone, tablet and desktop.
How to Convert an Image to Base64
- Drag and drop your PNG, JPG, SVG or WEBP image into the upload area, or click to choose a file.
- Check the live preview, original image size and Base64 character count.
- The Base64 Data URI appears instantly in the output box. Scroll sideways to view the full code.
- Click Copy Base64 to copy it, or Download as .txt to save it.
- Paste the code in your HTML or CSS file.
How to Use Base64 Images in HTML and CSS
In HTML
<img src="data:image/png;base64,iVBORw0KGgo..." alt="Logo">In CSS
.icon {
background-image: url("data:image/png;base64,iVBORw0KGgo...");
}Supported Image Formats
| Format | Data URI Prefix | Best For |
|---|---|---|
| PNG | data:image/png;base64, | Icons, logos, transparent images |
| JPG | data:image/jpeg;base64, | Small photos |
| SVG | data:image/svg+xml;base64, | Vector icons and shapes |
| WEBP | data:image/webp;base64, | Small, modern, lightweight images |
When Should You Use Base64 Images?
Good Use Cases
- Small icons, logos and bullets
- Tiny CSS background images
- HTML email templates
- Single-file HTML pages and demos
- Fewer HTTP requests for tiny images
Avoid For
- Large photos and banners
- Images used on many pages (browser cannot cache them separately)
- Very heavy CSS or HTML files
Base64 makes the data about 33% bigger than the original file, so keep it for small images.
Who Can Use This Tool?
- Web developers embedding small icons and logos in HTML or CSS
- Email template designers who need images inside the email code
- Frontend developers building single-file demos and prototypes
- API developers who send images as Base64 text in JSON
- Students learning about Data URIs and encoding
Why Use an Online Image to Base64 Converter?
- Instant result with no button or page reload
- No software or command line needed
- Private, because the image never leaves your browser
- Works on any device
Frequently Asked Questions
What is an Image to Base64 converter?
An Image to Base64 converter turns an image file into a long text string called a Base64 Data URI. You can paste this string directly into HTML or CSS, so the image loads without a separate file request.
How do I convert an image to Base64?
Drag and drop your image into the upload area or click to choose a file. The Base64 Data URI appears instantly in the output box. Click Copy Base64 or Download as .txt to use it.
Which image formats are supported?
The tool supports PNG, JPG, SVG and WEBP images.
How do I use a Base64 image in HTML and CSS?
In HTML, paste the Data URI in the src attribute of an img tag. In CSS, use it inside background-image: url(...). No separate image file is needed.
Why is the Base64 string bigger than the original image?
Base64 encoding increases the size by about 33 percent. That is why it is best for small images like icons, logos and tiny backgrounds, not for large photos.
Is my image uploaded to a server?
No. All processing happens inside your browser. Your image never leaves your device and is not stored anywhere.
Is this Image to Base64 converter free?
Yes, it is 100% free with no signup, no limit and no installation.
Need to embed an image in your code? Drop it into our Image to Base64 Converter and get a ready-to-use Data URI in one second. It's free!
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