CSV Clean Inspector

Local CSV diagnostics, reversible cleanup, visible diffs.

Clean and inspect CSV files with full visibility. CSV Clean Inspector is a CSV cleaner and data inspection tool that helps you clean messy CSV data, detect issues, and see exactly what changed. If you work with CSV files, spreadsheets, or exported data, this extension helps you understand and trust your data before using it. --- What you can do • Clean CSV files Remove duplicates, normalize empty values, and fix inconsistent formats. • Inspect data quality Detect missing values, invalid entries, and inconsistent data types. • Compare CSV changes See before and after values for every change with a built-in diff view. • Preview CSV data View your data in a high-density table designed for real data inspection. • Track transformations Every cleanup step is recorded and reversible. --- Built for • Developers working with CSV data • Data analysts cleaning raw datasets • Anyone dealing with spreadsheet exports --- Why this tool Most CSV tools clean data silently. CSV Clean Inspector lets you inspect, verify, and compare changes — so you always know what happened to your data. --- Privacy All processing happens locally in your browser. • No file uploads • No data collection • No tracking Your CSV files never leave your device.