How to dedupe an ecommerce orders csv
- Step 1Export orders from your store — Download the orders CSV from Shopify Admin, WooCommerce, or Magento backend.
- Step 2Drop the file into Deduplicator — The tool parses the CSV locally in your browser.
- Step 3Select Order ID as the unique key — Choose the Order ID or Transaction Reference column. The first occurrence of each ID is kept.
- Step 4Download the clean order file — Export the deduped CSV for import into your analytics, accounting, or fulfilment system.
Frequently asked questions
Why are there duplicate rows in a Shopify order export?+
Shopify expands multi-line-item orders into one row per item, so Order ID repeats across items. To dedupe by line item instead, choose a unique line-item column as the key.
Will this remove refunded or cancelled duplicates?+
Only exact-duplicate rows are removed. If a cancelled and a fulfilled row share an Order ID, both are kept unless all columns match.
Is order data uploaded?+
No. Processing runs in your browser. Order data is never sent to JAD Apps servers.
Privacy first
Processing runs locally in your browser with PapaParse. No file is uploaded — only metadata counters are saved for signed-in dashboard stats.