Image to Base64 Converter
Upload an image to convert it to a Base64 string or data URI. Preview the result, copy the encoded string, and see the output size.
Drag & drop an image here or click to select
How to Use This Image to Base64 Converter
Converting images to Base64 is useful for embedding images directly in HTML, CSS, or JSON without requiring separate image files. Simply drag and drop an image onto the upload area, or click to select a file from your device. The tool instantly reads the image in your browser and produces both a raw Base64 string and a complete data URI with the correct MIME type. You can preview the image from the Base64 output to verify it was encoded correctly, and copy either the raw string or the data URI with a single click.
When to Use Base64 Images
Base64-encoded images are ideal for small icons, logos, and UI elements that you want to inline in CSS or HTML to reduce HTTP requests. They are also commonly used in email templates where external image hosting may not be reliable. However, Base64 encoding increases file size by approximately 33%, so it is generally not recommended for large photographs or images above a few kilobytes.
Frequently Asked Questions
Is this tool free to use?
Yes, completely free. Convert as many images as you need with no limits and no sign-up required.
What image formats are supported?
All common image formats are supported including PNG, JPEG, GIF, SVG, WebP, and BMP. The tool automatically detects the MIME type and includes it in the data URI.
Is my image data private?
Absolutely. All conversion happens entirely in your browser using the FileReader API. No images are uploaded to any server.