Base64URL versus Base64
Base64URL replaces plus and slash with hyphen and underscore. It commonly omits equals-sign padding, making values easier to place in URLs and filenames.
Base64URL Encode
Encode UTF-8 text using the URL-safe Base64 alphabet without trailing padding.
Encode workspace
Encode UTF-8 text without URL-unsafe characters or padding.
Text input
Base64URL output
Not encryption
Encoding is reversible and provides no secrecy. Anyone who receives the value can decode its contents.