Bulk-import your domains in seconds: txt, CSV or a spreadsheet

One file is enough. Namelizer's Portfolio accepts a plain text list, a CSV, or an Excel sheet and adds every new name in one pass.

2026-10-18 · Namelizer

If your portfolio lives in a registrar export, a spreadsheet, or a note with one name per line, retyping it is the worst part of moving tools. The Portfolio page in Namelizer now takes all three formats in one import button.

A plain .txt file works with one domain per line. Blank lines, bullets and numbering are ignored, and anything that is not a valid domain is skipped. A .csv file keeps your columns: domain, status, cost, purchase date, registrar, expiry, auto-renew, renewal cost, listing price, notes, tier and theme are all recognised case-insensitively. An .xlsx or .xls sheet uses the same column names from its first sheet.

Duplicates are handled for you. Names already in your portfolio are skipped, and duplicates inside the file itself are imported once. After the import you see exactly how many names were added and how many were skipped.

Everything still stays in your browser. The file is read locally on your device, nothing is uploaded, and the export buttons on the same page give your data back as CSV whenever you want it.