Base64 Encoder/Decoder
Mode
Encode
Decode
Variant
Standard
URL-safe
Advanced
Padding
Ignore whitespace on decode
Enforce padding
Charset
UTF-8
UTF-16 LE
UTF-16 BE
ISO-8859-1
Wrap
None
64
76 (MIME)
Custom
MIME (for Data URL)
Download .b64
Download decoded
Base64 Input
Output
Copy Output
Copy Data URL
Copy Shell-safe
Download .b64
Download decoded
Features
Standard and URL-safe variants
Encode/Decode text in UTF-8
Whitespace-tolerant decoding
Privacy-friendly: processed entirely in your browser