Image to Base64 Converter
Upload an image file and convert it to a Base64 encoded string or data URI. Supports PNG, JPG, GIF, SVG, WebP, and more.
Drag & drop an image here, or click to browse
PNG, JPG, GIF, SVG, WebP, BMP, ICO
How to Convert Images to Base64 Online
- 1. Drag and drop an image onto the upload area, or click to browse your files.
- 2. The tool instantly converts your image to a Base64 string and data URI.
- 3. Preview your image and check file details (size, dimensions, type).
- 4. Click Copy Data URI for use in HTML/CSS, or Copy Base64 for the raw encoded string.
Frequently Asked Questions
What image formats are supported?
This tool supports all common image formats including PNG, JPEG, GIF, SVG, WebP, BMP, and ICO. Any image format that your browser can render can be converted to Base64.
What is the difference between Base64 and Data URI?
Base64 is the raw encoded string. A Data URI includes a prefix like "data:image/png;base64," followed by the Base64 string. Data URIs can be used directly in HTML img src attributes and CSS background-image properties.
Is there a file size limit?
There is no hard limit, but very large images (over 5 MB) may result in extremely long Base64 strings that could slow down your page. For most web usage, images under 100 KB work best as Base64.
Is my image uploaded to a server?
No. The conversion happens entirely in your browser using the FileReader API. Your image never leaves your device and is not stored anywhere.