# Humanizer Pro

> Humanizer Pro is a free AI humanizer and AI-to-human text converter. It rewrites AI-generated text (from ChatGPT, Claude, Gemini, and other LLMs) into natural, human-sounding writing that reliably passes AI detectors such as GPTZero, Turnitin, Originality.ai, and Copyleaks, while keeping the original meaning intact and producing plagiarism-free output.

## Key facts

- Anonymous (no signup) users can humanize up to 80 words per request.
- Free accounts (signup required) unlock up to 200 words per request and 5,000 words per month, plus word history.
- Paid plans (Basic, Pro, Advanced) increase per-request word limits (600 / 1,300 / 3,000 words) and monthly quotas (15,000 / 50,000 / 200,000 words), and include access to the PRO Engine, the Advanced humanization mode, and higher-limit AI Detector, Plagiarism Checker, and Fact Checker tools.
- All plans include multi-language support and a 3-day money-back guarantee.
- Content is processed securely and never used for model training.
- A REST API is available for developers to integrate humanization, AI detection, fact-checking, and plagiarism-checking at scale.

## Primary pages

- [Homepage](https://humanizerpro.ai/): free AI humanizer tool
- [Pricing](https://humanizerpro.ai/pricing): plans and pricing
- [AI Detector](https://humanizerpro.ai/ai-detector): check whether text is AI-generated
- [Plagiarism Checker](https://humanizerpro.ai/ai-plagiarism-checker): check text originality
- [Fact Checker](https://humanizerpro.ai/fact-checker): verify factual claims in text
- [AI Humanizer API](https://humanizerpro.ai/humanizer-api): developer API access
- [Blog](https://humanizerpro.ai/blog): articles on AI writing, detection, and humanization
- [About](https://humanizerpro.ai/about): company and team information

## Contact

support@humanizerpro.ai