Group Lines

Organize lines into custom-sized blocks

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Chunk a long list into equal-sized blocks

A single tall column of items is difficult to scan and awkward to process in batches. Group Lines takes your list and breaks it into blocks with a set number of lines each, then places a separator between the blocks. That is useful whenever something has to be handled in fixed-size batches, or when a list simply reads better in small clusters.

How to group your lines

Add your list to Input Lines, one item per line. Sample loads eight fruit names, and Paste and Clear work as expected.
Set Group Size. The default is 3 and the minimum is 1.
Optionally type text into the Separator field. Leaving it empty places one blank line between groups.
Press Group Lines.
The summary reports how many groups were created. Then copy the text or download grouped-lines.txt using Copy or .TXT.

How the groups are built

Empty lines in your input are discarded first, so the count is based only on lines that contain something.
Lines are taken in order, size at a time. With eight items and a size of three you get groups of three, three and two; the last group holds whatever is left.
With an empty Separator, groups are divided by a blank line. With text in the Separator, that text is placed on its own line between the groups, for example a row of dashes.

When it is handy

Splitting a list of email addresses into batches of 50 to respect a sending limit.
Preparing flashcards, quiz questions or seating lists in sets of four or five.
Breaking a long song, poem or script excerpt into stanzas of equal length.
Making a list of IDs or URLs easier to paste into a tool that accepts limited batches.

Things to note

Grouping is purely by count, so the tool has no understanding of the content and it will not keep related items together. Because blank lines are removed before grouping, any grouping you already had in the input is lost and rebuilt from scratch. A group size below 1 or an invalid number falls back to 1. The input box is left as it was, so you can change the size or the separator and run it again. If you want a numbered heading above each group you will need to add it afterwards. The work happens with JavaScript in your browser page.

Related Tools

Frequently Asked Questions

What happens if the lines do not divide evenly?

The last group simply holds the remaining lines. Grouping eight lines in threes gives groups of three, three and two. Nothing is dropped or padded, and the summary states how many groups were created.

What can I use as a separator?

Any text you type into the Separator field, such as a row of dashes or a label. It is placed on its own line between groups. If you leave the field empty, a single blank line divides the groups.

Are my existing blank lines kept?

No. Empty lines are removed before grouping, so the group size counts only lines with content. Any earlier paragraph gaps are lost, and new gaps appear only at the group boundaries.

What is the smallest group size?

The minimum is 1, which puts each line in its own group. If the field is empty or not a valid number, the tool uses 1, so check the summary to confirm how many groups you got.

Can it group lines by content, like by first letter?

No. It divides lines strictly by count, in their current order. To group by content, sort the list first with a text sorter, then use Group Lines, or split the list manually where the content changes.