How MergeLists Works
Quick Start Guide
Enter Your Lists
Paste your first list in Input A and your second list in Input B
Choose Options
Select your separator, merge mode, and other preferences
Get Results
Click "Combine Lists" and copy or download your merged result
Merge Modes Explained
Line-by-Line Merging (Default)
This mode combines corresponding lines from each list. Perfect for pairing related data.
Example:
All with All (Cartesian Product)
This mode creates every possible combination between the two lists. Great for generating test data or comprehensive pairings.
Example:
Options and Settings
Separators
Choose how to separate the merged items. You can use preset separators or enter a custom one.
Processing Options
- •Trim whitespace: Remove leading and trailing spaces from each line
- •Remove empty lines: Skip lines that are empty after trimming
Use Cases and Examples
Marketing Outreach
Combine contact names with company names for personalized emails.
Input B: Apple, Google, Microsoft
Result: John Apple, Jane Google, Bob Microsoft
Test Data Generation
Create comprehensive test combinations for software testing.
Input B: Windows, Mac, Linux
Result: 6 combinations for cross-browser testing
Data Analysis
Merge labels with values for CSV creation and data organization.
Input B: 1000, 2000, 1500
Result: Sales,1000, Marketing,2000, Support,1500
Contact Lists
Combine first names with last names or names with phone numbers.
Input B: Smith, Doe
Result: John Smith, Jane Doe
Tips and Best Practices
- •Large datasets: For cartesian products with many items, the tool will warn you about potential performance impact
- •CSV export: Use comma separators and download as CSV for spreadsheet compatibility
- •Empty lines: Enable "Remove empty lines" to clean up your data automatically
- •Privacy: All processing happens in your browser - your data never leaves your device
Ready to Get Started?
Try MergeLists now and see how easy it is to combine your lists.
Start Merging Lists