Image to Base64
Convert any image to a Base64 data URI string. Drag and drop, get the encoded string with the correct MIME type prefix. Copy directly into CSS or HTML.
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How to Use This Tool
- Upload an image file (PNG, JPG, GIF, SVG, WebP) or drag and drop it into the upload area.
- View the Base64 encoded string generated instantly.
- Copy the full data URI (including prefix) for embedding in HTML or CSS.
- Copy just the Base64 string if you need to construct the data URI manually.
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Frequently Asked Questions
What is Base64 image encoding?
Base64 image encoding converts an image file into a text string that can be embedded directly in HTML, CSS, or JavaScript. This eliminates the need for separate image files and HTTP requests.
What image formats are supported?
This tool supports PNG, JPG/JPEG, GIF, SVG, and WebP formats. The output preserves the original MIME type in the data URI prefix.
When should I embed images as Base64?
Base64 embedding is ideal for small images like icons, logos, and UI elements. It reduces HTTP requests and speeds up page loading. However, large images should remain as separate files for better caching.
How does Base64 affect file size?
Base64 encoding increases file size by approximately 33% compared to the original binary. This trade-off is usually worth it for small images since it eliminates a separate HTTP request.