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Rename, reorder, split, merge, and delete CSV columns visually. Map your data to match any CRM import format. Drag to reorder, click to rename. Your data never leaves your browser.
Drop a CSV file here
or click to browse — or paste CSV data below
Free CSV column mapper for renaming, reordering, splitting, and merging columns visually. Upload a CSV or paste data, then drag columns to reorder, click to rename, split "Full Name" into "First Name" and "Last Name", or merge columns together. Perfect for preparing data for CRM imports — map your CSV columns to match HubSpot, Salesforce, or any system's expected format. All processing runs in your browser — your data never leaves your device.
Upload your CSV. Each column shows its original name on the left and an editable rename field on the right. Type the target name — for example, rename "fname" to "First Name" and "email_address" to "Email". Click Apply Mapping to download the reformatted CSV. The data stays the same, only headers change.
Yes. Select "Split column" from the action dropdown, choose the column to split, set the delimiter (space for names), and name the two new columns. The tool splits every row on the first occurrence of that delimiter. Works for any column — addresses, combined fields, anything with a consistent separator.