AI Detector Write

AI Detector Write is an AI checker tool. A free web-based AI content detector that scans pasted text or uploaded .txt, .md and .csv files, highlights machine-written sentences, shows a human versus AI percentage split, and exports PDF reports.

AI Detector Write is a browser-based checker that estimates how much of a piece of text was produced by a language model rather than a person. The workflow is deliberately simple: paste text into the box (the counter allows up to 300,000 characters) or upload a document in .txt, .md or .csv format, then run the scan. The site advertises coverage of GPT-4, GPT-5, GPT-5.5, GPT-6, OpenAI and Gemini style output, and it returns a split between human-written and AI-generated content alongside a visual gauge showing the AI contribution. Results are returned in real time rather than queued. A progress bar tracks the scan, and the output highlights individual sentences that the model considers machine-written, so a reader can jump to the suspicious passages instead of rewriting a whole document. Each detection can be exported as a PDF report, which is the feature that makes the tool usable in a review context: an editor, teacher or client can receive a document that shows both the score and the flagged lines. Batch upload is available for checking several files at once from a dashboard. The tool is aimed at people who need a quick authenticity check before publishing or submitting work: content writers and editors vetting drafts, educators reviewing assignments, marketers auditing outsourced copy, and freelancers who want evidence that their own writing is human. It also suits anyone who wants a second opinion before sending text to a client who is sensitive about AI use. The market for detectors is crowded and mostly paid, with Originality.ai and GPTZero among the better known names. AI Detector Write positions itself on price (the detector is offered free with no stated character limit) and on breadth of language support, claiming coverage of all languages. Accuracy claims for this product class deserve caution generally, so the sentence-level highlighting and the PDF export matter more than the headline percentage: they let a human apply judgment instead of trusting a single number.