Base64 Encoder / Decoder

What is Base64 Encoding?

Base64 encodes binary data into ASCII text using 64 printable characters, commonly used for embedding images in CSS/HTML, encoding API tokens and transmitting binary data over text-based protocols.

Why Use Base64?

Base64 ensures binary data survives transit through systems that only support plain text, such as email (MIME), JSON APIs and data URIs.

Features

• Encode text and decode Base64 strings
• File upload support for encoding binary files
• Swap button to toggle between encode and decode
• Stats showing input/output character counts and ratio
• Works with Unicode text via browser encoding APIs