Show Base64 offsets

When a string is within a block of data and the whole block is Base64’d, the string itself could be represented in Base64 in three distinct ways depending on its offset within the block. This operation shows all possible offsets for a given string so that each possible encoding can be considered. Show Base64 offsets lives in the Data format category of the fx menu.

Parameters

Parameter	Type	Required	Default	Description
Input	string	yes	—	Value to transform. Previous step output or a literal.
Alphabet	string	no	A-Za-z0-9+/=	Argument value for this operation.
Show variable chars and padding	boolean	no	true	Enabled by default.
Input format	string	no	Raw	Choose one of: Raw, Base64.

Input is the primary value (previous step output or a literal).

Returned value

Type	Description
html	Result of the Show Base64 offsets transformation.

Limitations

• This operation treats Input as raw bytes (binary-capable). Non-text payloads may display differently after decoding.
• Invalid or mismatched encoding for the chosen options typically raises an evaluation error — fix the Input or options before re-running.

Example

Run Show Base64 offsets

When a string is within a block of data and the whole block is Base64’d, the string itself could be represented in Base64 in three distinct ways depending on its offset within the block. Adjust optional parameters when the defaults do not match your payload.

1. Set Input to the value to transform (previous step output or a literal).

2. Review Alphabet, Show variable chars and padding, Input format and keep defaults unless your format requires otherwise.

3. Confirm Output value shows the transformed result.