What is this duplicate keyword remover?
A free, browser-based tool that takes a list of keywords or phrases — separated by commas or newlines — and removes the duplicates, keeping the first occurrence of each. Matching is configurable: ignore case, trim surrounding whitespace, and collapse runs of inner whitespace, so near-identical entries are caught too. The original order is preserved and you can copy or download the cleaned list. Everything runs locally in your browser, so your data is never uploaded.
How to use it
- Paste your keyword list into the box on the left (comma or newline separated).
- Pick the separator — Auto handles both commas and newlines.
- Toggle the matching options (ignore case, trim, collapse whitespace) to fit your data.
- Read the before / after counts, then copy the result or download it as a text file.
Common use cases
- Cleaning a keyword research list before importing it into a search-ad campaign or SEO tool.
- De-duplicating tags, hashtags, or category labels collected from several sources.
- Merging exported keyword lists where the same term appears with different casing or spacing.