Encode text to Base64 or decode Base64 back to text instantly. UTF-8 safe, fully private — nothing is uploaded.
Base64 is a way of encoding binary or text data into plain ASCII characters, often used in data URLs, email attachments, and APIs. This free tool encodes any text to Base64 and decodes Base64 strings back to readable text — handling full Unicode (UTF-8) correctly. It runs entirely in your browser, so your data stays private.