Humaniser
The goal isn't to help people cheat. It's to help people write better — to strip out the robotic patterns that make AI-assisted writing feel lifeless, and let your own voice come through.
Humaniser is a free, open-source AI text humanizer and voice transformation engine. It converts robotic ChatGPT and Claude writing into natural human prose by removing AI-cliché vocabulary, injecting sentence-length burstiness, smoothing perplexity entropy distributions, and bypassing AI detectors without requiring sign-up.
How Humaniser Works Under the Hood
Syntactic Burstiness Injection
AI models generate uniform sentence lengths (15-20 words). Humaniser injects natural burstiness — alternating short punchy observations with complex explanatory clauses.
AI-Cliché Vocabulary Perturbation
Detects and replaces 50+ overused AI telltale phrases ('delve into', 'testament to', 'rich tapestry', 'vital role') with direct, unpretentious human vocabulary.
Code & URL Block Protection
Extracts markdown code blocks ```...```, inline code `...`, and URLs before transformation, ensuring technical syntax is never broken.
Perplexity & Entropy Smoothing
Smooths token probability distributions across sentences, breaking predictable n-gram patterns that statistical AI detectors (ZeroGPT, Turnitin) flag.