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AI Humanizer

Third-party service

Rewrite AI-generated or stiff-sounding text with AI so it reads more like natural human writing — pick how heavily to rework it, from light polish to a thorough rewrite.

Input

Minimum 50 characters, maximum 20,000 characters.

Output

Humanized text
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Guides

Paste AI-generated or stiff-sounding text and get it reworked by AI so it reads more like natural human writing — varied sentence rhythm, no formulaic transitions, less hedging — while keeping the exact same meaning.

How to use it

  1. Paste the text you want to humanize (50 to 20,000 characters).
  2. Choose a rework intensity: Light, Moderate, or Aggressive.
  3. Click Humanize.

Rework intensity

  • Light — small wording tweaks and light rhythm variation; keeps the structure mostly intact.
  • Moderate — noticeably reworks sentence structure, length, and phrasing throughout.
  • Aggressive — thoroughly reworks structure, word choice, and pacing for maximum natural variation.

What it changes

The rewrite specifically targets the patterns that make text read as AI-generated: uniform sentence length, formulaic transitions ("Moreover", "In conclusion", "It is important to note that"), generic hedging, and overly polished, repetitive phrasing. It doesn't add outside facts or opinions — only the wording changes.

Tips

  • Run the result through AI Content Detector afterward to see how the verdict shifted.
  • For a result you can share or embed without regenerating it, copy the output text — like every AI-generated tool on this site, the result isn't reproducible from a shared link (it's non-deterministic, so a link would just spend credits regenerating a different answer).
  • If a result still reads too uniformly, try the "Aggressive" intensity for a more thorough rework.

Is my text stored anywhere?

Your pasted text is sent to an AI provider to generate the humanized version, then discarded — it isn't logged, stored, or used to train anything. See the third-party data badge above the tool for details.

Will this guarantee text passes an AI detector?

No detector or humanizer is perfectly reliable in either direction. This tool changes the surface patterns AI detectors commonly key on, which often shifts a verdict, but it's not a guarantee against any specific detector — and using it to misrepresent AI-assisted work as fully human-written may violate the policies of wherever you submit it.

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Use it from code

From 24 credits per call

REST API

curl -X POST https://api.iotools.cloud/v1/tool/ai-humanizer \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "inputText": "The advancement of artificial intelligence has f…"
  }'

Swap in your own key from your account. The tool's fields are the body — no wrapper.

Ask an AI agent

Use the IOTools `ai-humanizer` tool (AI Humanizer) on this input:

YOUR_INPUT_HERE

Paste this at any agent connected to the IOTools MCP server, then add your input.

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