Hello In extension to https://github.com/qos-ch/logback/discussions/698#discussioncomment-6849417. I wanted to propose making an injectable FieldProcesssor bean for Encoder. Where you can specify how the message will be generated. By default, data will be processed as it is currently in ch.qos.logback.classic.encoder.JsonEncoder And if needed, it could be extended to change behavior. For example, time could be converted to UTF format. Or the message could be sent not as a string, but as a JSON object. Best regards, Mikl