Shorten the lines

What it's for

Every line longer than forty characters is cut and closed with an ellipsis. It's for when a list has to fit into a narrow space and seeing all the entries matters more than reading them in full: a list preview, chart labels, a spreadsheet column, the titles of a rundown, a form field that only takes a few keystrokes. The result is a tidy column instead of lines that overflow, each by a different amount.

The cut is by characters, not by words

The count is forty characters, so the cut can land in the middle of a word: «conventionally» becomes «conventional…». That's deliberate, because it's the only way to guarantee that every line is the same width, which is the whole reason for truncating. If what you need is a readable summary, an automatic cut isn't the tool for that job.

One detail worth knowing: emoji and some special characters count double, because in memory they take up two slots. A line full of emoji is therefore cut sooner than it looks.

Short lines are left alone

A line already within forty characters stays identical, with no ellipsis: the dots only appear where something was actually removed, so you can see at a glance which entries are complete and which aren't. Empty lines stay too, and the number of lines never changes: what goes in and what comes out have the same shape.

Nearby tools

If the lines are too long because the text is all run together, it's worth putting it back in line first with Text on one line or cleaning it with Remove extra spaces. To sort the entries from shortest to longest, and see straight away which ones overflow, there is Sort lines by length. And if the limit you have to respect is a social network's, the exact count is done by Social character counter.