Convert any image to a Base64 data URL for use in HTML, CSS, JSON, or code - no upload required.
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Free online image to Base64 converter that works entirely in your browser - no server uploads, no signup. Upload any PNG, JPG, WebP, GIF, or SVG image and instantly get the Base64-encoded data URL. Choose your output format: a full data URL (data:image/png;base64,...), raw Base64 string, CSS background-image rule, or an HTML <img> tag ready to paste. The tool also shows the original file size, encoded string size, and the size overhead so you know exactly what you're embedding. Ideal for embedding small icons in CSS, creating self-contained HTML pages, storing images in JSON APIs, or testing image rendering without a web server.
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