I rebuilt my Base64 image tool to be fully client-side (no uploads)

Most "image to base64" sites upload your image to a server to convert it. For a format whose No upload, no canvas for the common case — FileReader hands you a data URI directly: const reader = new FileReader(); reader.onload = () => { const dataUri = reader.result; // "data:image/png;base64,iVBORw0K..." const base64 = dataUri.split(",")[1]; }; reader.readAsDataURL(file); The MIME type is baked into the data URI, so from one result you can emit raw base64, a full , or a CSS background-image. at i