Compare Environments

Diff two .env files key-by-key. Order-insensitive. Duplicate keys keep the last value and surface a warning. Secret-looking keys (PASSWORD, API_KEY, TOKEN, SECRET) are masked by default so screen-shares stay safe. Use it when a deploy works in dev but the prod release box is missing a flag.

Paste two YAML manifests. The tool reads .data from ConfigMaps and both .stringData and base64-decoded .data from Secrets, then diffs them as key/value. Useful when a service runs fine in staging but the prod ConfigMap has drifted from the manifest in git.

Diff two YAML documents at the keypath level (server.host, items[0].name). Optional "match list items by name" handles k8s-style lists where order is not meaningful. Use it to chase config drift across environment-specific app YAMLs.

Same shape as YAML mode but the input is JSON. Useful for comparing serialized config snapshots between dev, UAT, and prod, or for chasing a behavior change that traces back to a config object.

Diff two header blocks (one per line, Name: value). Names are compared case-insensitively. Repeated names collapse with ", " so Set-Cookie drift is visible. Use it when prod adds a CSP header that staging is missing, or when CORS responses differ between regions.

Diff two OpenAPI 3.x specs (JSON or YAML) at the endpoint and schema level. Surfaces added/removed endpoints and schema-shape changes. This is a quick view — not a full breaking-change classifier.

Compare two CSV exports. Column drift is shown automatically. If you give a row-key column, rows are matched by key and you get row-by-row drift too. Useful when two systems should be in sync (reporting DBs, replicas, vendor exports) and you want to know exactly which rows differ.

Paste two column lists — one per line, CREATE TABLE DDL, or \d / DESCRIBE output. Catches schema drift between environments before a migration goes sideways.