KEYWORD RESEARCH
Keyword List Cleaner
Keyword exports from different tools arrive in different shapes: capitals, match-type brackets, stray spaces and duplicates. Paste them here to get one clean list you can sort, filter and take into a spreadsheet.
- Runs in your browser
- Nothing you paste is uploaded
- Free, no sign-up
- CheckLowercasing and whitespace normalisation
- CheckRemoval of [exact], "phrase" and +broad markers
- CheckOptional punctuation removal
- CheckDuplicate removal after cleaning
Free
no sign-up, no usage limit
0 uploads
what you paste stays on your device
5 checks
what the tool looks at
Offline
works once the page has loaded
Loading the tool…
HOW IT WORKS
How to use the Keyword List Cleaner
A list of keywords, one per line or tab-separated, up to tens of thousands of lines.
Paste keywords from any tool, one per line.
Choose the clean-up options and the word-count range.
Copy the list or download it as CSV.
WHAT IT CHECKS
What it looks at, and how to read it.
The cleaned list with counts of duplicates and filtered lines, ready to copy or download as CSV.
What it checks
- Lowercasing and whitespace normalisation
- Removal of [exact], "phrase" and +broad markers
- Optional punctuation removal
- Duplicate removal after cleaning
- Filtering by number of words
How to read the results
- Duplicates removed counts lines that matched an earlier keyword after cleaning.
- Outside word range counts lines dropped by your minimum and maximum.
GOOD TO KNOW
Common mistakes, an example and the limits.
Common mistakes
- Removing punctuation from keywords where it matters, such as product model numbers.
- Merging lists before cleaning, which hides how many duplicates came from each source.
A worked example
Merging a Search Console export with a Google Ads list gives 1,240 lines; after cleaning, 812 unique keywords remain.
Limitations
- Duplicates are matched on exact text after cleaning; it does not merge synonyms or plurals.
FAQ
Questions about the Keyword List Cleaner
Straight answers about what it does and where its limits are.
Is my list uploaded anywhere?
No. The cleaning runs in your browser and nothing is sent to Ndovu.
Research volumes and difficulty in Keyword Research.
Free tools check one thing at a time. The NdovuSEOLabs platform connects your own Search Console, analytics and server logs, and keeps checking every page.