About DetectGPT
DetectGPT is a free AI checker for ChatGPT, Claude and Gemini text. Paste up to 3,000 words or a public page URL and get an AI percentage with highlighted passages. No account or login is needed. It supports unlimited checks, .txt uploads, shareable result links, a plagiarism/similarity tab and a Humanizer tool. Students, writers and marketers can use it to review essays, drafts and web copy before publishing.
DetectGPT is a free, browser-based AI content detector for students, writers and marketers. Paste up to 3,000 words, upload a TXT file, or enter a public page URL. DetectGPT analyzes writing from ChatGPT, GPT-5, Claude, Grok and Gemini, then returns a percentage indicating how much of the prose looks machine-made. Flagged passages are highlighted in light yellow, yellow, orange or red so users can see which lines may sound like a model. No account, login, campus license or original prompt is required. Use it for an essay, article, marketing draft or public webpage to review likely AI-written passages before submitting or publishing. Features include unlimited checks, shareable result links, a plagiarism/similarity tab and a Humanizer tool. DetectGPT is strongest on English.
