Image to Base64 Converter

Converting images to Base64 encoded strings is a common requirement in modern web development, email template design, and API integration. Base64 encoding transforms binary image data into a plain text string that can be embedded directly into HTML, CSS, JavaScript, or JSON files. This eliminates the need for separate image file requests, reducing HTTP overhead and simplifying deployment. Our free Image to Base64 converter runs entirely in your browser using the FileReader API, which means your images are never uploaded to any server. Simply drag and drop or select any image file — JPG, PNG, WebP, GIF, BMP, SVG, or TIFF — and instantly receive the Base64 encoded output. Choose between a complete data URI format ready for use in img src attributes and CSS background properties, or a raw Base64 string for API payloads and database storage. The converter handles images of any size and displays the encoded string length so you can estimate the impact on your document size. Note that Base64 encoding increases file size by approximately 33%, so it is best suited for small images, icons, and thumbnails where reducing HTTP requests provides a net performance benefit.

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