Base64 encode / decode
Base64 encoding is a reversible method for representing binary data as text so it can be safely handled in text-only contexts. It is commonly used to embed images or files in data URIs or to transmit binary data as text in email attachments. Base64 is not encryption and should not be used to protect sensitive information. This tool performs encoding and decoding entirely in the browser; be cautious when processing very large binary data as it may impact memory.