A STARTING POINT, MADE FOR YOU

The catalogue import preparer
toolbox.

Clean catalogue identifiers, check digits and generate import documents.

INSIDE THE TOOLBOX

8 useful places to start.

Starter collection

Checksum tools check arithmetic only; they do not confirm identifier allocation or ownership.

Check ISBN-10/13 digits and convert compatible book number formats.

Generate or check EAN-8, UPC-A and EAN-13 arithmetic checksums.

Generate or verify a modulo-10 check digit on a numeric string.

Pad textual IDs to a fixed minimum width without losing leading zeros.

Reformat a column of strict ISO dates without locale guessing.

Build quoted INSERT statements while retaining text identifiers and values.

Turn table rows into printable cards with a safe local HTML preview.

Trim and deduplicate a simple address list while reporting syntax problems.

SMALL TASKS. LESS FRICTION.