CSV Viewer
Detect delimiters, search and sort CSV rows, control visible columns and download a safely re-parsed file.
LocalOpen tool
Spreadsheet / CSV
Inspect, clean, merge, split and convert CSV data without uploading it.
Tool library
Detect delimiters, search and sort CSV rows, control visible columns and download a safely re-parsed file.
Remove empty rows, duplicates, extra spaces and formatting problems from CSV files without uploading your data.
Append several CSV files by matching headers, column position or a union of all columns.
Split a CSV by row count, file count, a column value or an estimated file size.
Create an XLSX workbook from CSV data with a custom workbook name and worksheet name.
Choose key columns, preview the duplicate count and download a cleaned CSV in a focused workflow.