Unique Line Counter / Duplicate Line Counter
Options
Total lines
Unique lines
Duplicate lines
What is a Unique Line Counter?
A unique line counter helps you count how many times each line appears in a block of text.
It is useful for logs, keyword lists, exports, tags, emails, deduplication checks, and repeated multi-line data.
How to use the Unique Line Counter
- Paste your text into the input field.
- Choose whether to ignore case, trim whitespace, remove empty lines, or sort by frequency.
- Click Count lines.
- Review the counts and copy the result.
Tips
- Enable trim whitespace if lines may contain leading or trailing spaces.
- Enable ignore case if Apple and apple should be counted as the same line.
- Use sort by count to see the most repeated lines first.
- This tool is useful before deduplication or cleanup.
Related tools
You may also find these tools useful.
Duplicate Line Remover
Remove duplicate lines from text quickly and cleanly.
Text & Content
›
Line Sorter
Sort lines of text quickly and cleanly.
Text & Content
›
Word Counter
Count words, characters, lines, paragraphs and reading time instantly.
Text & Content
›
CSV Row Filter
Filter CSV rows by value, match type, and selected column.
CSV & Data
›
Unique Line Counter FAQ
Can this tool count duplicate lines?
Yes. It counts how many times each line appears and shows repeated lines clearly.
Can I ignore case differences?
Yes. Enable the ignore case option.
Can I remove empty lines from the count?
Yes. There is a separate option for removing empty lines.
Is my text stored?
No. Everything runs directly in your browser.