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Chunk List

Split a list into consecutive chunks of a fixed size. This tool separates input items, chunks them sequentially, optionally pads incomplete chunks, and formats the output using custom separators and wrappers.

Chunk List Examples

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Group Hexagon Coordinates

In this example, we group the coordinates of a regular hexagon. The input coordinates are given as a space-separated list "x1 y1 x2 y2 x3 y3 …". What we want to do is create vector point pairs such as "(x1, y1); (x2, y2); (x3, y3); …". To do that, we use the space character as the input coordinate separator, and to create vectors, we group them by pairs. We wrap the coordinates in parentheses, put a comma between the x and y group items, and a semicolon between individual groups.

Input Item Separator

Use Symbol Splitting

Split input items using a single character.

Use Regex Splitting

Split input items using a regular expression.

Delimiter symbol or regular expression used to split input items.

Group Size and Output Format

Number of items per group

Separator placed between items inside a group

Separator placed between groups

Symbol added before each group

Symbol added after each group

Empty Items and Padding

Delete Empty Items

Ignore empty items and exclude them from the result.

Pad Incomplete Groups

Fill the last group if it has fewer items than required.

Character or value used to pad incomplete groups.

Chunks of Size 3

This example demonstrates grouping of list items and creates 9 groups of 3 items. The input list contains all alphabet letters (26 letters, separated by a semicolon) and the output is groups of letter trigrams. As the last group is missing one letter, we enable padding and add the underscore symbol as the padding element.

Input Item Separator

Use Symbol Splitting

Split input items using a single character.

Use Regex Splitting

Split input items using a regular expression.

Delimiter symbol or regular expression used to split input items.

Group Size and Output Format

Number of items per group

Separator placed between items inside a group

Separator placed between groups

Symbol added before each group

Symbol added after each group

Empty Items and Padding

Delete Empty Items

Ignore empty items and exclude them from the result.

Pad Incomplete Groups

Fill the last group if it has fewer items than required.

Character or value used to pad incomplete groups.

Convert a List to a TSV

In this example, we use our list item grouper to convert a food list to tab-separated values (TSV). As spaces are chaotically used between the items of the input list, we use the item separating regular expression "\s+" to match them. We create a TSV with three columns (three groups), separate them with a tab character, and put newlines between the groups.

Input Item Separator

Use Symbol Splitting

Split input items using a single character.

Use Regex Splitting

Split input items using a regular expression.

Delimiter symbol or regular expression used to split input items.

Group Size and Output Format

Number of items per group

Separator placed between items inside a group

Separator placed between groups

Symbol added before each group

Symbol added after each group

Empty Items and Padding

Delete Empty Items

Ignore empty items and exclude them from the result.

Pad Incomplete Groups

Fill the last group if it has fewer items than required.

Character or value used to pad incomplete groups.

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