Add Prefix to Words

Add a chosen prefix to each detected word while keeping spaces, punctuation, and line breaks.

Text and settings

Options

Output

Waiting for input or an example.
Input
0
Output text
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Lines
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Changed words
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How to use

Paste your text, choose the options, run the tool, and review the output before copying or downloading it.

Method and boundaries

The transformation works on detected word or text segments while preserving separators where the tool promises to do so. The same deterministic settings produce the same result when a seed is supported.

Frequently asked questions
What does the skip-existing option check?

It checks the start of each detected word and the separator immediately before it. Turn it on to leave an existing matching prefix alone; turn it off if you want to stack the prefix.

Are punctuation and line breaks changed?

No. The prefix is added to detected word segments; spaces, punctuation, and line breaks stay in place. Word boundaries still depend on the browser, so review mixed or unusual text.

Can I use a prefix with non-Latin text?

Yes. The tool works with Unicode word segments. Chinese, apostrophes, and hyphenated words can be segmented differently, so check a small sample before a large run.

Privacy and references

Text is processed in this browser and is not uploaded.

Word boundaries differ between languages and scripts. Long inputs are capped so the page remains responsive; review the output when punctuation, apostrophes, or compound words matter.

Unicode text boundaries (UAX #29)

Sources and standards