Clean a CSV locally without uploading it.
Open a CSV in your browser, inspect its quality, apply precise cleanup rules, and download a separate cleaned file. Your source stays on your device throughout the local workflow.
Profile the file before changing it
See filled, empty, unique and repeated value counts for every column. The profile makes quality problems visible before a cleanup rule changes the preview.
Apply only the rules you choose
Trim or collapse whitespace, change text case, convert empty values to nulls, and deduplicate complete rows or selected key columns. Every rule appears in a visible plan that you can undo or reset.
Review uncertain matches separately
Fuzzy matching suggests similar values for human review. A suggestion never changes or deletes a record, because similar names are not proof that two business records are the same.
Work within clear local limits
Local mode accepts CSV files up to 20 MB, 100,000 rows and 500 columns. The table previews up to 100 rows, while export processes the complete accepted file and creates a new CSV.