How to use List Set Operations

Calculate union, intersection, difference, or symmetric difference between two line lists.

1. Paste, type, or drag and drop a supported text file into the input area.
2. Place the second value in the adjacent panel. Sensitive fields are masked by default.
3. Choose the options that match your intended result.
4. Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.

Use “Swap inputs” to reverse the comparison without copying either value.

What the result means

Produces a bounded, inspectable list set operations result locally.

Privacy and safety

This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.

Limitations

• Each complete line is one set value; ordering follows the first appearance rather than mathematical sorting.

Try the included example

Select “Load example” at any time to restore this tested sample.

Ada
Lin
Grace

Lin
Grace
Margaret