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Free AI Vocabulary Checker

Spot the ChatGPT Words in Your Writing

Paste any text and we'll highlight every "delve, leverage, pivotal" — the words that scream AI-generated. 80+ tells caught instantly. Free, runs in your browser.

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What is it

What is the AI Vocabulary Highlighter?

ChatGPT, Claude, and other AI writing tools have telltale word habits. They overuse certain verbs ("delve, leverage, navigate, harness"), reach for puffed-up adjectives ("robust, seamless, holistic, transformative"), and lean on hedge phrases ("it's important to note, in today's fast-paced world").

When humans read enough AI text, they start to notice these patterns subconsciously. AI detection tools score them explicitly. And the words become a credibility tax — your writing sounds less like you and more like a corporate newsletter.

This tool flags 80+ of the most common AI tells inline. Paste your draft, see what gets underlined, swap the flagged words for plain alternatives. Two minutes of work, dramatically more human-sounding result.

Use cases

Who uses it

Writers reviewing AI drafts
Strip out the AI fingerprints before publishing.
SEO writers
Avoid words that AI detectors flag heavily — lowers AI-detection scores.
Students editing AI-assisted essays
Make AI help genuinely invisible.
Marketers polishing newsletter copy
Sound less like a press release, more like a person.
Editors fact-checking submissions
Quickly assess if a draft was AI-generated.
FAQ

Common questions

Is this tool free?

Yes, 100% free, no signup, no limits. Runs in your browser.

Where does the word list come from?

80+ words and phrases compiled from analysis of common ChatGPT, Claude, and Gemini outputs. Updated quarterly as AI writing patterns shift.

Why are these specific words flagged as AI?

They're statistically over-represented in AI-generated text vs. human writing. Words like "delve" appear ~30x more in AI articles than in human-written ones. Phrases like "in today's fast-paced world" appear in roughly 0.1% of human articles but ~5% of AI ones.

Should I always remove every flagged word?

No. Some flagged words are legitimate and necessary in context. The tool gives you visibility — you decide what to swap.

What should I replace flagged words with?

"Delve" → "look at" / "explore". "Leverage" → "use". "Pivotal" → "important" / "key". "Navigate" → "handle" / "deal with". "In today's fast-paced world" → just delete it.

Does this guarantee my text passes AI detection?

No. Vocabulary is one signal among many (sentence rhythm, perplexity, structure). For a full check, run your text through TextSight's AI Detector.

Will the tool work on Hindi or other non-English text?

Currently English only. Hindi and other languages on the roadmap.

Why is "robust" in your AI list — that's a normal word?

"Robust" is normal in tech writing. It's flagged because AI overuses it ~10x more than human writers in general writing. In context (developer documentation), it's fine. In a personal essay, it screams AI.

Done editing? Confirm your text reads human

3 free scans/day, no card. Run through TextSight Detector to see your final score.