Quetext

Quetext is a writing-integrity platform from Quetext Software LLC that combines a plagiarism checker with an AI content detector, built around what the company calls DeepSearch technology. The plagiarism checker searches roughly 35 billion web pages, 20 million books, and over a million scholarly journals, using contextual analysis and fuzzy matching to catch paraphrased or lightly reworded copying, not just exact-match text. The AI detector analyzes writing patterns, sentence structure, and predictability to flag content likely generated by tools like ChatGPT or Gemini, scoring at the sentence level rather than just giving one document-wide verdict. Quetext also bundles a grammar checker, an AI summarizer, a paraphrasing tool called AITutorMe, a citation generator, and an AI humanizer that rewrites machine-generated text to read more naturally. A Chrome extension lets users check text without leaving their browser, and a developer API allows the checks to be built into learning management systems, CMS platforms, and other publishing workflows. Quetext is aimed at students, teachers, and educational institutions verifying academic integrity, as well as content creators and professionals checking originality before publishing. The free plan is limited, it does not include file uploads, PDF export, or AI detection, so anyone needing those features has to move to a paid tier.