FREE BROWSER TOOL
CSV cleaner and deduplicator
Trim cells and remove duplicate rows. Your pasted CSV stays in this browser tab.
Handles quoted commas, escaped quotes and quoted line breaks. Removes only exact duplicate data rows after trimming cells; it does not merge similar organizations. The first row is kept as the header. Exports prefix spreadsheet formula-like cells with an apostrophe.
Before you leave
Export anything you need to keep. Tracker records stay in this browser; the other tools reset when the tab closes. Read the storage details.