Description:`nf-diff` is a Nextflow plugin that compares two workflow runs by reconstructing them from Nextflow's history and cache, generating a comprehensive HTML report showing differences in parameters, configuration, processes, performance, outputs, and more. It solves the problem of understanding what changed between pipeline executions without re-running workflows. Bioinformaticians, data scientists, and CI/CD engineers use it to validate pipeline changes, debug differences, and gate deployments on workflow reproducibility.