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August 28, 2025
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Diff Checker utility?

  • August 28, 2025
  • 4 replies
  • 662 views

Hello Community - I searched for a Diff Checker utility but perhaps there's another term to use.  I'd like to see, line by line the difference between published libraries, attempting to track down what appears to be a rather deep issue. 

 

I've pulled each build's corresponding files manually and popped them into a diff checker one by one, but that's tedious.  If that's the only way to go, what diff checker recommendations do you have?

 

Thanks -- 

MitchellTe1 (MitchellT)

Best answer by bjoern__koth

Hi @mitchellte1 

you could check the different versions on a rule or data element level or use a diff tool that you would typically find in development IDEs like MS Code or IntelliJ Idea. 
This can become quite an endeavor though since launch libraries can become quite big

4 replies

bjoern__koth
Community Advisor and Adobe Champion
bjoern__kothCommunity Advisor and Adobe ChampionAccepted solution
Community Advisor and Adobe Champion
August 29, 2025

Hi @mitchellte1 

you could check the different versions on a rule or data element level or use a diff tool that you would typically find in development IDEs like MS Code or IntelliJ Idea. 
This can become quite an endeavor though since launch libraries can become quite big

Cheers from Switzerland!
yuhuisg
Community Advisor
Community Advisor
August 30, 2025

Launch doesn't have a native diff checker.

However, if you're savvy enough with programming, you can write a script that uses the Launch API to programmatically read-and-diff your libraries. See the API guide: https://experienceleague.adobe.com/en/docs/experience-platform/tags/api/endpoints/libraries

Sukrity_Wadhwa
Community Manager
Community Manager
September 8, 2025

Hi @mitchellte1,

Were you able to resolve this query with the help of the provided solutions, or do you still need further assistance? Please let us know. If any of the answers were helpful in moving you closer to a resolution, even partially, we encourage you to mark the one that helped the most as the 'Correct Reply.'

Thank you!

Sukrity Wadhwa
Pablo_Childe
Community Advisor
Community Advisor
September 10, 2025

There is a rule version checker in Launch you can compare items within the rule itself version to version.

 

Not sure if that is what you are trying to see.