Base64 Encoder & Decoder
Convert plain text strings to Base64 format, or reverse Base64 strings back to normal text. Everything runs inside your browser.
Encoded Output
Output will appear here...
About Base64 Encoder & Decoder
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is widely used in email processing (MIME), basic authentication headers, storing complex image data inside HTML/CSS files, and routing keys in API parameters.
Key Operations:
- Base64 Encoding: Transforms standard character sets (UTF-8) into a representation composed of 64 printable characters (A-Z, a-z, 0-9, +, /).
- Base64 Decoding: Takes an encoded string and re-translates it back to its original human-readable text formatting. If the input string is not structurally valid Base64, the decoder will warn you.
- URL-Safe Encoding: Modifies standard Base64 encoding by substituting '+' with '-' and '/' with '_' so strings can be passed in URL queries without character-escaping conflicts.