How it works
A plain-language look at what happens after you press “Check text”, and what our scores can and can't tell you.
Paste or upload
Drop in an essay, article or report. Plain text works today; Word and PDF are coming next.
Two checks at once
Our AI model scores every sentence while the plagiarism engine searches the web and academic sources.
See the evidence
Highlighted sentences, linked sources and a report you can save, so you know exactly what to fix.
1. Reading your document
We extract the text, count words and characters, and look for integrity problems such as look-alike letters or invisible characters. Bibliographies, quotes, lists, tables and code are marked so they don't distort the scores.
2. AI detection
A classifier trained on human and AI writing reads your prose in overlapping windows. Each sentence gets a probability of being AI-written, plus whether it looks like AI text that was later paraphrased. The document score is the share of words in flagged sentences. We need at least 300 words to give a score.
3. Plagiarism detection
We fingerprint your text and look up matches in our index of open sources, then search the live web for your most distinctive sentences. Every candidate source is compared word by word to find exact matching passages and their citation status.
4. Limits you should know
AI detection is probabilistic. It can flag human writing, especially short or very formal texts and writing by non-native English speakers. Plagiarism checks only cover sources we can reach: private databases, paywalled journals and other students' submissions held by schools aren't included. Use results as evidence to review, not as a verdict.