Why StealthHumanizer?
With the rise of AI-generated content, tools that can humanize text are in high demand. But most solutions are paid, require sign-ups, or limit your usage. I wanted to build something different — a completely free, open-source text humanizer that anyone can use without restrictions.
StealthHumanizer supports 13 text generation providers, 4 rewrite levels, 13 distinct tones, and a multi-pass "ninja mode" for maximum naturalness.
Features
🔄 13 AI Providers
StealthHumanizer works with OpenAI, Anthropic, Google, Mistral, Cohere, and many more providers. Switch between them freely — whatever works best for your content.
📊 4 Rewrite Levels
From light touch-ups to complete rewrites, choose the level that fits your needs.
🎨 13 Tones
Professional, casual, academic, creative, persuasive, and more. Pick the tone that matches your content's purpose.
🥷 Multi-Pass Ninja Mode
Run multiple humanization passes for the most natural-sounding output. The ninja mode applies layered transformations to make text virtually indistinguishable from human writing.
🔓 No Login, No Limits
Zero friction. No account creation. No usage caps. Just open it and use it.
Tech Stack
- Language: TypeScript
- Architecture: Provider-agnostic plugin system
- UI: Clean, minimal interface focused on usability
Live Demo
🔗 GitHub Repository
Why Open Source?
Text humanization should be accessible to everyone — students, content creators, developers, and researchers. Locking this behind paywalls creates an uneven playing field. StealthHumanizer levels it.
*Built by Rudra Sarker — Open Source Developer
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