AWS Mainframe Modernization Service (Managed Runtime Environment experience) is no longer open to new customers. For capabilities similar to AWS Mainframe Modernization Service (Managed Runtime Environment experience) explore AWS Mainframe Modernization Service (Self-Managed Experience). Existing customers can continue to use the service as normal. For more information, see [AWS Mainframe Modernization availability change](https://docs.aws.amazon.com/m2/latest/userguide/mainframe-modernization-availability-change.html).

# AWS Mainframe Modernization Code Conversion with mLogica
<a name="assembler-conversion"></a>

AWS Mainframe Modernization Code Conversion with mLogica (Code conversion), is an AWS Mainframe Modernization feature that automatically converts z/OS mainframe Assembler code to COBOL. You can use Code conversion to pull an assembler image using the AWS CodeBuild service for your intended code conversion with your AWS account.

**Topics**
+ [What is Assembler Conversion with mLogica?](assembler-conversion-what-is.md)
+ [Understand Code conversion billing for Assembler conversion](assembler-conversion-billing.md)
+ [Code conversion concepts](assembler-conversion-concepts.md)
+ [Understand components and processes for Code conversion](assembler-conversion-components-process.md)
+ [Tutorial: Convert code from Assembler to COBOL in AWS Mainframe Modernization](assembler-conversion-steps.md)