Petre Popescu Open Source Projects / LogMasker · GitLab

LogMasker is an easy-to-use library that allows your application to mask sensitive information before it is written to the log, or a log Personally Identifiable Information Reduction (PII Reduction) library. It does the masking directly on the log stream and minimizes the risk of sensitive data appearing inside any printed log.

This is done by intercepting the log event and masking it even before it has a chance to be written. Works with Log4j2 as well as Logback.