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 FileMaker Pro Custom Functions

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MD5 ( String )

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  Average rating: 4.5  (30 votes)
  Discuss this Custom Function

Tom Guise, Siso Systems

MD5 hash of any content (string, number, container)

Sample Input:
MD5 ( "HashThisString" )
Sample Output:

 Then copy & paste into FileMaker Advanced's Edit Custom Function window.



Function uses the new native MD5 container attribute to force a hash of any given string, number or container content.

Note: these functions are not guaranteed or supported by Please contact the individual developer with any questions or problems.

This is my Custom Function and I want to edit it


5 most recent comments | Show all 6 comments

If you pass any empty string, it will return an error unless captured.

Tom Guise, Worcestershire
October 18, 2014 5:06pm


is the MD5 of an empty string

Daniele Raybaudi, Rome
October 18, 2014 5:16pm

This icould be, for examle, the calculation for an auto-entered MD5:

not IsEmpty ( Self ) ; Lower ( GetContainerAttribute ( Self ; "md5" ) ) ;

Daniele Raybaudi, Rome
October 18, 2014 5:19pm

Agreed, but for my use of this function I would prefer the result to be empty where an empty parameter has been passed.

Thanks for the input!

Tom Guise, Worcestershire
November 04, 2014 9:14am

Regarding empty string. When I try it, I get an error:

getContainerAttribute( ""; "MD5")

=> ?

Bruce Robertson, Redmond WA
August 13, 2015 11:06am

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