This post was originally published here

In our Integration projects, especially nowadays on Azure Integration Services, we often work with JSON messages. And despite Logic App Designer allowing us to generate a JSON schema based on a JSON payload (or JSON message), there are many situations that we find ourselves in the need to create a JSON Schema outside the Logic App. One good example is when we are creating a map inside the new Data Mapper.

Unfortunately, there aren’t any out-of-the-box capabilities inside the new Data Mapper to generate a JSON Schema from a JSON Message, so we only have two options:

  • Create a dummy Logic App to generate the JSON Schema and then manually copy it and save in the Artifacts folder;
  • Or we will use free online tools like this one:, but what annoys me about these online tools is that all data are stored in their log files, and sometimes for privacy/security concerns that can be a problem.

Mainly because of these reasons, I decide, along with my team, to start creating these free tools with the source code available on GitHub in order to not raise the same suspicions.

JSON Document to JSON Schema Converter Tool

JSON Document to JSON Schema Converter Tool is a straightforward Windows that allows you to generate a JSON Schema based on the sample JSON Document that we provide.
No data are stored in log files.

Where can I download

Hope you find this useful! So, if you liked the content or found it useful and want to help me write more content, you can buy (or help buy) my son a Star Wars Lego! 


  • Luis Rigueira | Member of my team and one of the persons responsible for developing this tool.
Author: Sandro Pereira

Sandro Pereira lives in Portugal and works as a consultant at DevScope. In the past years, he has been working on implementing Integration scenarios both on-premises and cloud for various clients, each with different scenarios from a technical point of view, size, and criticality, using Microsoft Azure, Microsoft BizTalk Server and different technologies like AS2, EDI, RosettaNet, SAP, TIBCO etc.

He is a regular blogger, international speaker, and technical reviewer of several BizTalk books all focused on Integration. He is also the author of the book “BizTalk Mapping Patterns & Best Practices”. He has been awarded MVP since 2011 for his contributions to the integration community.
View all posts by Sandro Pereira