Base64UrlDecode()

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Decodes a Base64URL-encoded string.

Requires Extension: Crypto Extension

Base64UrlDecode( encoded=string, charset=string );

Returns: any

Argument Description
encoded
string, required 		edit

Base64URL-encoded string
charset
string, optional 		edit

If provided, returns decoded data as string using this charset

Examples

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// Decode a Base64URL-encoded string back to its original form
// Returns binary by default
decoded = Base64UrlDecode( "SGVsbG8gV29ybGQ" );
// decoded is a binary value
str = charsetEncode( decoded, "UTF-8" ); // "Hello World"

// Pass a charset to get a string directly
decoded = Base64UrlDecode( "SGVsbG8gV29ybGQ", "UTF-8" );
// "Hello World"

// Handles missing padding automatically (Base64URL typically omits padding)
decoded = Base64UrlDecode( "dGVzdA", "UTF-8" ); // "test"

See also