ToyTools Guide

Repeating Text Without Breaking the Paste

Choosing a separator, numbering each copy, generating test data of a known length, and why a repeat count is the easiest field on the page to get wrong.

5 min read Updated Aug 2026

Quick Answer

Paste the text, set how many copies, choose what goes between them. The result updates as you type, so there is no button that says repeat text and nothing to submit.

For example, Input: the word test, 5 copies, separated by new lines. Output: five lines each reading test. Switch the separator to nothing and the same settings give you one twenty character string instead.

The text repeater also measures the result before it builds it. A count with an extra zero in it gets caught before your tab locks up.

Repeat Some Text →

What is a text repeater for?

Three jobs, and they want different settings.

Testing a limit is the first. You need a string of a known length to push a form field, a database column or a meta description past its ceiling, and the fastest way there is repeating something short with no separator.

Mocking up structure is the second. A table needs eight rows before the layout looks real, so duplicate text is faster than typing: one row repeated eight times and numbered gives you something to edit rather than something to write. The third is bulk editing: repeat a line of CSV or markup, then change each copy in place.

How does the repeat work?

The tool builds a list of copies and joins them with your separator. That order matters, because a separator goes between copies rather than after each one.

For example, three copies of test joined by a new line give three lines with no trailing blank one. Instead of a stray empty line at the end, you get exactly what you would have typed by hand.

Numbering wraps each copy with its index before the join. A copy that spans several lines therefore keeps one number for the whole block, which is the behaviour you want when the thing being repeated is a paragraph rather than a word.

Which separator should I choose?

New line for anything you will read afterwards, which is why the tool starts there.

Choose nothing when you are padding a field to a character count, because the separator would count toward the limit you are trying to test. Choose a space to build a long sentence, and a comma with a space for a quick inline list. Choose a blank line when each copy is a paragraph.

The common mistake is leaving it on nothing by accident. A hundred copies of a word run together into one 400-character token, and no editor wraps that sensibly, so the output looks broken when it is doing exactly what it was told.

Why does the count field need a guardrail?

Because a repeat count is not free, and an extra zero is one keystroke.

Fifty copies of a paragraph is a few kilobytes. 50,000 copies of the same paragraph is several megabytes, and building that string blocks the tab while it happens. Then the paste that follows gets refused by the field it was headed for, so the wait bought nothing.

So the tool works out the size before it builds anything. Past roughly a quarter of a million characters it states the size in kilobytes or megabytes and offers a count that lands under that line. Past five megabytes it declines to build the string at all and tells you what would fit. Below that it stays completely quiet.

Repeated text vs generated placeholder text

Repeating text is right for size and wrong for behaviour.

If the question is what happens at 5000 characters, repeated text answers it exactly and cheaply. Repeated text is not random test data, though, and the gap matters. If the question is whether the sort works, whether deduplication fires, or whether a list looks right at a glance, identical rows hide the answer. Unlike varied filler, a thousand copies of the same line will pass a broken sort without complaint.

Generating varied filler is a different job with a different tool. Instead of repeating for those cases, use the lorem ipsum generator, which produces sentences that differ from each other. Do not reach for repeated text when the variation is the point of the test.

What to do with the result

Copy it, download it as a text file, or measure it.

The line under the output gives the character and line counts as you go, because the reason for repeating something is frequently a limit. For a fuller breakdown, including counts with and without spaces, send it to the character counter.

To edit every copy at once afterwards, the find and replace tool handles it in one pass. Everything here runs in your browser, nothing is uploaded, and your settings persist on this device so the tool opens the way you left it.

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