Duplicate Filter
Remove duplicate lines from a list. Paste lines into the field, select any options below, and press Submit. Results appear at the bottom of the page.
How It Works:
Simply paste your text into the field provided, select the options that best suit your needs, and press the Submit button. Within seconds, you'll have a clean, deduplicated list ready to use.
- Ignore Capitals: Treat lines with different capitalization as duplicates (results in lower case)
- Keep Blanks at Line Starts: Retain leading spaces to maintain formatting consistency
- Sort Results: Automatically sort your results alphabetically for quick organization
Frequently Asked Questions
How does the duplicate filter tool work?
The tool analyzes each line in your content and removes duplicate lines, keeping only one occurrence of each unique line (the first occurrence). You can optionally ignore case differences, preserve leading blanks, and sort the results.
What does the "Ignore capitals" option do?
When enabled, the tool treats lines with different capitalization as duplicates. For example, "Apple" and "apple" will be considered the same line. Results will be converted to lowercase.
What is the "Keep blanks at line starts" option?
When enabled, leading spaces at the beginning of each line are preserved. This is useful when you need to maintain formatting or structure in your data.
How many lines can I process?
The tool can handle large lists, but for best performance, we recommend processing lists under 100,000 lines. For very large lists, consider breaking them into smaller sections.
Is my data sent to a server?
No! All processing happens locally in your browser. Your data is never sent to any server, ensuring complete privacy and security.
Are results saved automatically?
No, results are not saved automatically. You need to copy the results and save them to a secure location if you want to keep them. We recommend saving results immediately after processing.