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Encode images as Base64 strings. Free, private, runs in your browser.
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Base64 is a method of representing binary data (like image files) as plain ASCII text. A Base64-encoded image can be embedded directly into HTML, CSS, or JSON without needing a separate file request. The resulting string starts with a data URI prefix (e.g., data:image/png;base64,...) that tells the browser to decode and display the image inline.
Base64 embedding eliminates HTTP requests, which can improve performance for small images like icons, buttons, and decorative elements. It's also useful for embedding images in emails (which can't always load external URLs), in single-file HTML documents, and in JSON API responses. For images under ~10KB, Base64 often reduces total page load time.
Convertful reads your image file using the browser's FileReader API and converts it to a Base64 data URI string. The output includes the proper MIME type prefix so you can paste it directly into an HTML img src attribute or CSS background-image property. No server upload is involved.
Yes. Your images are read and encoded entirely within your browser. Nothing is sent to any server.
Base64 is a text encoding that represents binary data as ASCII characters. It's used to embed images directly in HTML or CSS without separate file requests.
Base64 is ideal for small icons and inline images. For larger images, regular files are more efficient.