Power Words Highlighter
Paste your copy and instantly see which persuasive "power words" you're already using β and which categories are missing.
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What Is a Power Words Highlighter?
A power word is a word chosen for the reaction it triggers rather than the information it carries β words like "instantly," "proven," "secret," or "free" that push a reader toward curiosity, urgency, trust, or desire. Copywriters lean on them in headlines, subject lines, and calls to action because plain, purely descriptive language rarely moves someone to click, buy, or subscribe on its own.
This tool scans whatever text you paste in, matches it against a list of power words grouped into five categories, and highlights each match directly in your copy so you can see at a glance where the persuasive language is concentrated β and where it's missing entirely.
How the Score Is Calculated
Each piece of text is checked against four weighted factors:
| Factor | What it checks |
|---|---|
| Power word density | What share of your total words are power words β too few and the copy feels flat, too many and it can feel like hype. |
| Category variety | Whether you're drawing from more than one category (urgency, trust, emotional, exclusive, sensory) instead of leaning on just one. |
| Opening strength | Whether a power word appears in the first third of your text, where headlines and first lines carry the most weight. |
| Repetition check | Whether you're repeating the same one or two power words instead of varying your language. |
Tips for Using Power Words Well
Lead with a power word where you can β the first line of an email or the first few words of a headline get read even when the rest gets skimmed. Match the category to the goal: urgency words like "now" or "limited" suit a sale, while trust words like "proven" or "guaranteed" suit a product page.
Avoid stacking several power words back to back in one sentence β it reads as hype rather than persuasion. One or two well-placed words usually outperform a sentence stuffed with them. For more on the psychology behind persuasive language, see the Wikipedia entry on persuasion.
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