Copyleaks is an AI content authenticity platform that checks text for AI generation and plagiarism, with additional detection for images, video, and code. It serves individuals, businesses, and educational institutions through self-serve plans and sales-led enterprise and education offerings.
GPTZero is an AI content detection and writing verification tool for educators, teams, and developers. It scans text for AI-generated content, mixed authorship, and citation problems, and it offers classroom, workflow, and API integrations.
MyDetector is a web-based AI detector and writing assistant for checking whether text appears human-written or AI-generated. It also includes an AI Humanizer and essay-focused review workflow for users working with essays, reports, and other content.
Quillbot is an AI writing assistant for paraphrasing, grammar checking, summarizing, citations, originality checks, and content creation. It offers browser extensions and apps for writing across web, desktop, mobile, and Word.
Sightengine is an API platform for moderating and analyzing images, videos, text, and audio. It helps teams detect unsafe, synthetic, or policy-restricted content and act on the results programmatically.
Turnitin AI Detector is a web-based AI text detection tool that lets users paste text, scan for AI-generated content, and review sentence-level rewrite suggestions in AI Spotter. It is positioned for students, educators, writers, and editors who need a quick no-signup check.
Wordvice AI is a web-based AI writing assistant and text editor for proofreading, paraphrasing, translation, summarization, plagiarism checking, and AI detection. It also includes a document editor, ChatPDF, and team plan options.
ZeroGPT is a web-based AI content detector and writing toolkit for identifying likely AI-generated text, reviewing highlighted passages, and supporting editing workflows. It also offers related tools such as a plagiarism checker, paraphraser, humanizer, summarizer, translator, and API access.
Quetext is a plagiarism checker and AI detector for checking original writing, citation support, and revision workflows. It offers a free tier, paid plans, a Chrome Extension, and a RESTful API for teams and developers.
Qlay is a browser-based proctoring and evaluation product for transparent assessment supervision. The public site indicates Chrome is required and access is gated by login or account creation.
