Base64 Encoder & Image to Base64

A Data URI is a scheme that allows you to embed file contents directly into web pages, commonly formatted as data:image/png;base64,..... It can be used directly in HTML <img> tags or CSS background-image rules.

Base64 encoding uses 64 ASCII characters to represent binary data, resulting in a file size increase of approximately 33%. Therefore, it is ideal for small images or icons but not recommended for large files.

No. This tool is smart: if the prefix is present, it identifies the image type; if it is a raw Base64 string, the tool attempts to render it as a PNG image by default.

This usually happens if the copied Base64 string is incomplete (missing end characters or data prefix), contains invalid characters (like spaces or non-Base64 symbols), or the source data is corrupted. Please ensure the string is copied fully and formatted correctly.