01
Source exportBaseline dataset
Sample loadedaccounts_source.csv
Use the synthetic sample or select two CSV exports. This browser demonstration applies exact key matching and exact field equality. Files are processed locally and are not uploaded.
| KEY | FIELD | SOURCE | TARGET | ROWS | STATUS |
|---|---|---|---|---|---|
| No comparison has been run yet. | |||||
Local by design. The demo reads files in this browser tab. It does not upload, save or transmit them. Closing or refreshing this page clears the session.
NO SERVER UPLOADThe website demo demonstrates the comparison workflow with browser-side JavaScript. The downloadable production engine is implemented in C17 and has its own CLI, tests and evidence utilities.
CSV parsing, unique-key validation, exact field comparison, one-sided key detection and JSON export.
JSONL upload, normalization, schema mapping, transformation checks, database connectors or full migration assurance.