"undefined" in Base64
Base64 Encoded
dW5kZWZpbmVk
"undefined" encoded in Base64 is: dW5kZWZpbmVk
How it works
Base64 encoding converts binary data to ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). Each 3 bytes of input becomes 4 Base64 characters. Padding with "=" is added when needed.
"undefined"input
→dW5kZWZpbmVkBase64 output
Common use cases
- Encoding data in URLs and email
- Storing binary data in JSON or XML
- HTTP Basic Authentication headers
- Embedding images in HTML/CSS
- JWT token payloads
Try the encoder
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