Toolkits

List Cleaning Toolkit

Remove duplicates, filter unwanted rows, normalize messy list data, and inspect repeated values in one private workflow.

Tools in this toolkit

Use these related tools together as a repeatable workflow.

Remove Duplicate Lines Online Deduplicate a list while preserving a predictable order. Filter List Lines Online Keep matching rows or remove unwanted rows from a list. Online List Cleaner Apply the most common list cleanup steps in one pass. List Item Frequency Counter Count repeated values and identify the most common lines. Remove Empty Lines Online Remove blank rows without changing the remaining order. Trim Whitespace from Every Line Clean spaces and tabs from the start and end of every row. Remove Line Numbers Online Delete common numbering prefixes from a pasted list. Find and Replace Text in Lines Bulk replace text or patterns throughout a pasted list. Keep Only Duplicate Lines Extract the values that repeat in a list. Highlight Duplicate Lines with Counts Review duplicate rows in context before deleting them. List Statistics Calculator Audit the size and quality of a list before cleaning it.

About this tool

Raw exports often contain blank rows, inconsistent spaces, repeated identifiers, and values that should be excluded. These tools turn that cleanup into small, predictable steps.

Because processing happens locally, the toolkit is suitable for internal IDs and other data you do not want uploaded to a remote conversion service.

Audit duplicates or frequencies first.
Filter or normalize the list.
Run a final deduplication pass before export.