StealthGPT

Undetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.

AIテキストを人間らしく整え、自然さをチェック

AI生成テキストを人間らしい自然な文章に書き換える

AIが書いた文章を自分の言葉のように

Phrasly is an AI writing suite built around a humanizer and detector pairing: it rewrites AI-generated drafts into more natural prose, then checks the result, alongside an AI writer, plagiarism checker, document editor, translator and chatbot.

GPTinf is a web-based writing suite that combines AI humanization with a set of detection and quality tools. Paste your draft and it rewrites AI-style prose into more natural, human-sounding text, while its detector, plagiarism, readability and grammar tools help you spot problems before you publish or submit.

WriteHuman is an AI humanizer and detection suite. It rewrites text produced by ChatGPT, Claude, Gemini, Grok, DeepSeek and similar tools into natural, human-sounding prose, and includes an AI detector, an AI image detector, a word counter, a Chrome extension and a REST API for developers.

文単位の分析とヒューマナイズを備えた無料AI検出器

HumanizeAI.io is a free online AI humanizer that rewrites text produced by chatbots like ChatGPT, Gemini, Claude and DeepSeek so it reads more naturally. It offers Basic, Aggressive and Enhanced rewriting modes, a keyword-lock feature, synonym suggestions, one-click rephrasing and a suite of more than 45 related writing tools for paraphrasing, summarizing, grammar checking and translation.

AIヒューマナイザーと学習・執筆のオールインワン支援ツール

AI文章を自然で検出されにくい人間らしい文章に書き換えるAIヒューマナイザー

AI テキストを人間化し、無料で検出し、あらゆる主要モデルと対話