indie hacker

Ok Er • Peerlist

CSV Lens is a free browser utility for the cleanup step between a data export and its next import. I am sharing my own project, developed with AI assistance.Choose whether duplicates mean complete rows or matching values in specific columns. Matching the email column keeps the first record for that address; it does not merge the other fields. Preview the retained rows and download a cleaned CSV or TSV.Files and pasted table content are processed locally in the browser. The site separately collects limited usage events and optional feedback. It supports UTF-8 files up to 5 MiB, quoted commas and multiline fields, and formula-protected export. It does not handle XLSX, fuzzy matching or record merging.The site includes worked examples, a method guide and explicit limits. It has been checked with formula/parser tests and real browser downloads; user demand and revenue have not yet been validated.If you try it, a small non-sensitive example of an unexpected result would help improve the tool.