CCSV Local Tools
Catalog quality

Find duplicate SKUs or duplicate values in any column

Pick the SKU or identifier column. The checker groups repeated values and produces both duplicate and deduplicated outputs.

No uploadNo accountFree to use
1

Choose your CSV

Local processing
Drop a CSV hereor choose a file · up to 50 MB Download a safe sample

Not sure? Start with UTF-8 and change this if the preview is garbled.

2

Configure the result

Choose a CSV to begin.
How it works

From source file to checked output

  1. 1

    Load the catalog CSV.

  2. 2

    Choose the SKU or other unique-key column.

  3. 3

    Review duplicate counts and download the relevant rows.

Built for operations

Useful before it becomes a workflow

These tools target repetitive catalog and operations tasks. Today each action is free and local. Reusable mappings, batch execution, automation, and APIs will only be built when repeated demand is proven.

Important boundary

Always validate output against the destination system’s current specification. This site is independent and is not certified by a marketplace.

Questions

Before you process a file

Are SKU comparisons case-sensitive?

By default, surrounding whitespace is trimmed but letter case is preserved. SKU-01 and sku-01 remain different values.

What happens to blank SKU cells?

Blank keys are reported separately and are not treated as one valid duplicate group.

Can I keep the first duplicate?

Yes. The deduplicated output keeps the first row for each non-blank key and preserves rows with blank keys.