✨ AI Text Humanizer
Select your preferences, paste text, and get undetectable human writing
0 / 10,000 words
🔍 AI Text Detector
Deep analysis with 12 metrics — perplexity, burstiness, patterns, readability
⚙️ API Key Settings
Your keys stay in your browser only — never stored on any server
⚠️ Danger Zone
ℹ️ About StealthHumanizer
🥷 What is StealthHumanizer?
A free, open-source AI text humanizer that transforms AI-generated content into natural, human-like writing. It uses advanced multi-pass humanization with 13+ AI providers to produce text that reads as authentically human.
⚡ How It Works
- Text Analysis — Analyzes input for AI patterns (perplexity, burstiness, transition words)
- Multi-Pass Rewrite — Rewrites with your chosen level, style, and tone
- Auto Re-Humanization — Detects remaining AI patterns and rewrites flagged sentences
- Score Verification — Loops until your target human score is reached
🏆 Comparison
Compared to StealthWriter ($20-50/mo, 10-150 daily limit) and QuillBot ($19.95/mo, limited features), StealthHumanizer is:
- ✅ 100% free — just use a free API key (Gemini, Groq, ZAI)
- ✅ Unlimited usage — no daily caps, no word limits
- ✅ Open source — MIT License, fully transparent
- ✅ 13+ AI providers — switch anytime
- ✅ Private — keys never leave your browser
- ✅ 13 tone presets — more than most alternatives
- ✅ Ninja mode — 5-pass auto-humanization targeting 100%