Quetext
Plagiarism checker and AI content detector with grammar, summarising, paraphrasing and citation tools.
AI Content Detection
28 tools · 20 with a free plan · 5 with a free trial · 17 with an API
28 tools in this category, each with a full profile: what it does, key features, screenshots, and pricing when the maker publishes it.
PlagiarismCheck.org
Plagiarism checker and AI content detector for schools, universities, businesses and individual writers.
ZeroGPT Plus
AI text detector with content-type modes, sentence-level reports and a companion humanizer and plagiarism checker.
Winston AI
AI content detector that scores text and images for machine authorship and checks writing for plagiarism.
SuperHumanizer
AI text rewriter with two modes, tone presets, a proofread check and sentence-level alternatives.
Rewritify
AI humanizer that rewrites machine-generated text in a more natural style and includes a built-in AI detector.
Walter Writes AI
AI humanizer and AI detector that rewrites AI drafts into natural prose and scores text for AI likelihood.
Class Companion
Classroom tool that gives students instant AI feedback and tutoring on written assignments and shows teachers the results.
Reversely.ai
Reverse image search that finds similar pictures, sources, duplicates and faces, with an AI image detector.
GradPilot
Admissions essay grader that scores a draft against application-specific rubrics and adds AI detection.
Originality.ai
AI content detector with plagiarism, fact, grammar and readability checks for publishers, agencies and schools.
Scribbr
Academic writing services and tools: proofreading, plagiarism checker, citation generator and AI detector.