RowLoom — Clean and Reformat Messy CSV Files Online

Turn messy CSVs into the format you actually need

Supplier lists, bank exports, client spreadsheets — upload one, tell RowLoom what<br>"clean" means for you, and download a file with trimmed values, consistent number and date<br>formats, and no blank rows. No install, no macros to maintain.

Clean a CSV now<br>Create a free account

How it works

01<br>Upload

Drop in a CSV. We read the header row and the first few rows so you can see exactly what you're working with.

02<br>Map & clean

Match columns to a target format, or just pick quick per-column fixes — trim, force 2 decimals, standardize dates.

03<br>Download

Get the cleaned file back in seconds. Registered users can reuse the same mapping automatically next time.

Two ways to use it

Quick clean — upload a file, pick a couple of cleaning options per column, and download. Nothing saved, nothing to configure ahead of time. No account needed.

Saved schemas — registered users define a reusable target schema once, then map any matching CSV to it on every import. Mappings are remembered for files with the same columns.

Files are processed on request and deleted automatically after a short retention window — your data doesn't sit on our servers indefinitely.

Cancel<br>Delete