Copyleaks vs Secur3D

無料・オープンソースZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.

無料・オープンソースGPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.

特化型盗用チェックに加えて専門家による校正が含まれていますが、ネイティブの自動AIコンテンツ検出機能はありません。

無料・オープンソース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.

無料・オープンソース1回のスキャンでAI検出・盗用チェック・コンテンツ品質評価を完了

無料・オープンソース文単位の分析に対応した多言語 AI 検出ツール

無料・オープンソースWinston AI is an AI content detection suite that identifies text and images produced by generators like ChatGPT, Gemini, and Claude. Alongside its detector it offers plagiarism checking, an AI image and deepfake detector, writing feedback, and an API for embedding detection into other platforms.

無料・オープンソーススコアだけでなく根拠を示すAI検出ツール

無料・オープンソース学校・大学・チーム向けの高精度な盗用およびAI検出

Quetext is an online writing-integrity platform built around its DeepSearch™ engine, combining a plagiarism checker, AI content detector, grammar checker, summarizer, humanizer, citation generator and paraphrasing assistant in one dashboard. It is used by students, teachers, copywriters and content teams to confirm that a piece of writing is original, human-written and properly sourced before it is submitted or published.

無料・オープンソース文単位分析付きの無料 AI コンテンツディテクター

Rulta is a DMCA takedown and content-protection service for online creators. It monitors the web and major platforms for stolen, reuploaded or impersonated content and files removal notices on your behalf, so you can focus on creating instead of chasing leaks.