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Image Tools
Image to Base64 Converter
Convert any image (PNG, JPG, GIF, SVG, WebP) to a Base64 string or data URI. Paste directly into HTML, CSS, or JSON. Free, client-side.
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Drop an image here
PNG, JPG, GIF, SVG, WebP — processed entirely in your browser
Frequently asked
questions
A Base64-encoded image is the image's binary data converted to a text string using the Base64 alphabet. It can be embedded directly in HTML (<img src="data:image/png;base64,...">), CSS (background-image: url("data:...")), or JSON, eliminating an HTTP request for the image file.
Yes — Base64 encoding increases file size by approximately 33%. A 100 KB image becomes about 133 KB as a Base64 string. This trade-off is acceptable for small icons and images where eliminating an HTTP round-trip is more valuable.
No. The conversion uses the browser's FileReader API entirely client-side. Your image data never leaves your device.