Confdiff – semantic diff for config files (JSON/YAML/TOML) that redacts secrets

Confdiff is a semantic diff tool for configuration files (JSON, YAML, TOML, and other formats) that compares the actual data content rather than text, ignoring cosmetic changes like reordering keys or reformatting. It includes a unique `--redact` feature that masks secret values as fingerprints, allowing teams to see that sensitive data has changed without exposing the actual values in diffs, PR comments, or CI logs. The tool runs entirely client-side in a browser or as a CLI utility, addressing limitations of traditional text-based diffing tools.