Professional Plagiarism Checker and AI detector
PlagPointer combines a revolutionary plagiarism checker with a new standard of AI detector. Check for both plagiarism and AI-generated content in one easy step, with unbeatable accuracy.
British owned and operated.
AI detector features:
Our AI detector uses a gold-standard API with over 99% AI detection accuracy and a false-positive rate of just 0.03%. We’re powered by the world’s leading AI-based text analysis company who has spent 10 years collecting, ingesting and analysing trillions of pages of crawled content and user-sourced content, sourced from thousands of universities and enterprises worldwide to train its model.
Unparalleled AI detection (GPT-5, GPT-4/ChatGPT, Claude, Gemini, DeepSeek, Llama, Bloom, Rytr, Jasper & more)
Three sensitivity levels: Extra Safe, Balanced & Extra Sensitive, to balance false-positive risk against detecting increasingly modified or “humanised” AI content.
Powerful AI detector software that works in 30+ languages – the perfect AI checker for teachers
Backed by independent research & repeatedly ranked among the highest-performing AI detectors in independent academic studies, including a 2026 study in which it achieved a mean detection score of 99.6/100 across AI-generated scientific articles.
More than an AI score: the technology behind PlagPointer analyses the patterns within your writing to help identify why text may have been flagged as AI-generated – including phrases statistically associated with AI writing and matches against AI-generated material published elsewhere.
Detect more than obvious AI copy-and-paste: identify AI-generated text even when it has been edited, paraphrased or mixed with human-written content. The detector is continually updated as AI models and writing tools evolve.
Technology trusted by leading organisations and educational institutions including Moodle, Semrush, D2L, Macmillan Learning, Imagine Learning and Oakland University. We do not share your scans with universities/education institutions.
Plagiarism checker features:
PlagPointer doesn’t just return a similarity percentage. It identifies matching sources and distinguishes exact matches, minor alterations and paraphrased content, so you can understand what was found and review it properly.
Searches 60 trillion web sources, 16,000+ open-access journals and, optionally, 1 million+ previously submitted documents.
Uses world-class award-winning API trusted by 1,000+ universities and 300+ organisations.
Scan html, htm, txt, rtf, xml, md, pdf, docx, doc, pptx, ppt, odt, epub, odp, ppsx, pages, xlsx, xls
Your document is not added to our shared comparison database unless you choose that option.
Optional cross-language checking can uncover sources copied from another language and translated.
Quote for your exact document before you scan, depending on options chosen.
1 credit = 250 words – no unfair expensive credits for short documents.
Very simple and easy-to-use interface
Option to exclude references, quotes, citations + table of contents.
Option to scan against 1 million+ internal documents & 20+ code data repositories
Option to adjust sensitivity for faster reports
More than 100 languages supported.
Institution bulk pricing available
Ideal for students, schools, websites, businesses + more
Highly competitive pricing
Option to use credits in wallet or pay for more
Detects identical text, near identical, paraphrasing
Easy to read, downloadable PDF report
Bulk scan up to 5 files at once
Pay only for what you use – no unfair subscriptions
Credits from 18p GBP each.
Plagiarism Resources:
Articles
See latest news and topics
Articles covering a range of topics on plagiarism, including famous plagiarism cases, plagiarism in the news and topics to help students.
Ask the Doctor
See guidance from our lecturer.
Guides prepared by a lecturer from one of the UK’s leading universities who has taught undergraduates, postgraduates, GCSE and A level students for 30+ years.
Reviews
Compare plagiarism checkers
Read our honest, straightforward reviews of other online plagiarism checkers available.
Types of plagiarism
Learn more about plagiarism types.
There are many different forms of plagiarism. In this section, we look at the most common – some are obvious, others come as a surprise to many students!
FAQs
Find out more.
Read answers to frequently asked questions on using our AI detector and plagiarism checker software.