This has been developed by Jason Lattimer – you can find more information on his GitHub page https://github.com/jlattimer/CRM-Numeric-Workflow-Utilities and from there you will be able to see a link to download it.
Jason also has a blog that you can find https://jlattimer.blogspot.com/2018/03/updated-crm-workflow-utilities.html
In summary his solution will provide Custom workflow actions that deal with text strings in Dynamics CRM 2015, 2016, & D365/CE (v7.0+) (although more items may have been added after writing this)
- B64 Decode
- B64 Encode
- Contains
- Create Empty Spaces
- Decode Html
- Encode Html
- EndsWith
- Join
- Length
- PadLeft
- PadLeft Dynamic
- PadRight
- PadRight Dynamic
- Random String
- Regex Extract
- Regex Match
- Regex Replace
- Regex Replace With Space
- Replace
- Replace With Space
- Reverse
- StartsWith
- Substring
- ToLower
- ToTitleCase
- ToUpper
- Trim
- Word Count
- Remove HTML
- Url Encode
- Url Decode
To go back to my ‘index of workflow tools’ have a look at my blog which can be found here