pino‑noir is a small library that adds redaction (censoring) of sensitive fields to logs generated with **pino** version 4 and earlier. It exports a function that creates a pino serializer object, letting you specify paths (with dot/bracket notation and wildcards) and a censor value or function, so any matching keys are replaced or stripped before being written. The tool is aimed at Node.js developers who use pino (or its web‑framework adapters) and need to hide confidential data in their log output.