Slice List - Extract a Portion of a List Online

What Is a List Slicer?

The Slice List tool lets you extract a portion of a list by specifying start and end positions. You can split a list by a character or regular expression, define a range of items to extract, and join the sliced items with a custom separator.

How to Use the Slice List Tool

Paste or type your list into the Input List text area.
Choose a Separator Mode — use Literal for a fixed character or Regex for a pattern.
Enter the Input Separator that currently divides your items (e.g., \n for newlines).
Set the Start Range position (1-indexed; use negative values to count from the end, e.g., -1 for the last item).
Set the End Range position (leave empty to slice to the end).
Choose a Join Symbol to connect the sliced items in the output.
The sliced result appears instantly in the output area.

Common Use Cases

Extract a subset of items from a long list for focused analysis.
Remove the first or last N items from a list using negative positions.
Convert a portion of a list into a different format using the join symbol.
Quickly preview a range of data from a large dataset.

Frequently Asked Questions

How are item positions numbered?

Positions are 1-indexed. Position 1 is the first item, position 2 is the second, and so on. Negative positions count from the end, where -1 is the last item, -2 is the second-to-last, etc.

What happens if I leave the end range empty?

The slice will extend from the start position to the very end of the list. This is useful for extracting everything after a certain point.

Can I use negative positions?

Yes. Negative positions count from the end of the list. For example, a range of [2, -2] will slice from the second item to the second-to-last item, dropping the first and last items.

Can I use regular expressions for splitting?

Yes. Switch to the Regex separator mode and enter a valid pattern. For example, \s+ splits on any whitespace.

What if my start position is greater than the end position?

The tool will return an empty slice. Ensure your start position is less than or equal to the end position for a valid slice.