What is the Keyword Deduplicator?
A keyword deduplicator scans a list of search terms and removes repeats, optionally ignoring case and stop words. For Amazon sellers, the typical use is trimming backend search term lists to fit in the 250-byte limit.
How to use the Keyword Deduplicator
- 1 Paste your keyword list into the input box.
- 2 Choose your separator (space, newline, comma, tab).
- 3 Toggle "Case-insensitive" and "Remove stopwords" as needed.
- 4 Click Deduplicate — see the unique count, removed count, and bytes saved.
- 5 Copy the clean list directly into Seller Central or your bid sheet.
Benefits
- Case-insensitive matching catches "Bottle" and "bottle" as duplicates
- Built-in stop word remover (a, the, and, for, of...)
- Reports bytes saved — critical for the 250-byte backend cap
- Works on space-, comma-, tab-, or newline-separated lists
Common use cases
- → Trimming backend search terms before Seller Central upload
- → Cleaning a keyword research export (Helium10, JungleScout, Cerebro)
- → De-duping a list pasted from multiple PPC campaigns
- → Removing competitor brand names from a working keyword list