Free GPT Detector – Detect ChatGPT Text Online
GPT Detector identifies AI content with 99% accuracy on GPT-5 and ChatGPT, making it the most accurate AI detector.
GPT Detector is the most accurate AI detector including 99% accuracy on GPT-5, GPT-4, ChatGPT & more. Quickly analyze text and identify AI-generated content.
GPT Detector is a free tool that detects if content comes from GPT-5, GPT-4 or ChatGPT. It gives accurate results fast, which helps teachers check homework for AI use and content teams keep online content real, all while protecting academic honesty. No sign-up needed.
GPT Detector is totally free, needs no sign-up to use right away, and gives accurate checks for GPT-5/GPT-4/ChatGPT content fast. Perfect for academic content detect and teams verifying online content to keep it real.
Many checkers for academic papers miss the latest GPT-5/GPT-5-Pro models, have confusing reports, charge fees or risk data leaks. But our free, no-sign-up GPT Detector fixes this with accurate checks and clear, easy-to-follow results.
You don’t need to pay any fees or register an account with personal details. Just open the tool and start your detection right away.
This tool is updated to adapt to the newest GPT models. It can accurately detect content created by these latest AI systems.
The generated reports break down results into clear points, with key information easy to find. Anyone can understand them without trouble.
Copy-paste your text (like essays, homework, or research notes) into GPT Detector’s input box. No need to format it first.
Find the clearly marked "Detect" button on the page and click it — no sign-up or payment is needed here.
Wait just a few seconds, then you’ll see full results: marked AI parts, confidence rates, and a simple report to read.
No sign-up needed. Just input your content, get accurate results fast, and keep your work real with our GPT Detector.
Try GPT Detector for Free
L.M.
Undergraduate Student
I use GPT Detector every time I finish academic papers before submission. It’s a total lifesaver! It’s completely free, no sign-up required at all, and spots even small bits of GPT-5 content super accurately. I used to worry nonstop about accidental AI parts slipping in but now I’m fully confident submitting my work and results come in just a few seconds!
J.K.
Content Creator
As a content creator, I need to make sure my blog posts and social media content have no unlabeled AI parts. GPT Detector is perfect for this. It’s easy to use, gives clear reports, costs nothing. No sign-up saves me time and accurate results help keep my content authentic for my readers.
M.R.
Graduate Student
I was so tired of paying for expensive AI checkers just to review my research papers. GPT Detector changed everything. It’s 100% free, no sign-up steps, and catches GPT-4 and GPT-5 content really well. It’s simple to navigate, works fast even with long papers, and keeps my work 100% original. I’ve told all my classmates about it!
S.R.
Freelance Writer
As a freelance writer, I check every article — from blog posts to client case studies — before delivery with GPT Detector. It’s free, no sign-up hassle, and gets results in seconds. It clearly marks AI parts so I can fix them fast. Clients love that I guarantee fully original work thanks to this tool!
D.W.
University Instructor
I teach college writing and often check student papers for AI to help guide their learning. GPT Detector is super reliable. It’s free, no sign-up needed, and stays accurate even with the latest GPT models. It gives simple, easy-to-understand reports so I can walk students through issues clearly. It’s way better than the complicated paid tools I used before!
A.L.
Master’s Student
For my master’s thesis, originality matters more than anything so I need to make sure no AI content slips in. GPT Detector is a total game-changer. It’s free, no sign-up, and works fast even with my long thesis chapters. Its accurate results let me find and fix small AI parts quickly. This tool has been so helpful for my academic work!
Yes, GPT Detector is 100% free to use. There are no hidden fees, no premium plans that lock basic features, and no limits on how many times you check text. You can input academic papers, blog posts, essays or even short paragraphs as often as you need without paying a cent. What’s more, no sign-up is required to access all its features, so you can start using it right away.
No, you don’t need to sign up or create an account to use GPT Detector. This means you can start checking text immediately without going through a registration process. Just paste your content into the input box, click “Check,” and get results fast. You won’t have to share personal info like your email or phone number, so you don’t have to worry about account setup or extra data entry steps.
GPT Detector can accurately identify content generated by popular GPT models. These include GPT-5, GPT-4 and ChatGPT, which are the most commonly used models for creating text. It’s designed to spot text from these models in different types of content, like academic papers, freelance articles, social media posts and even short stories. This way, you get reliable results no matter what kind of text you’re checking.
Yes, GPT Detector takes user privacy very seriously. It does not store your text, any personal data you might share or the results of your checks. Once you get your report and close the page, your content is completely deleted from the system. Since no sign-up is needed, you don’t have to share info like your email, name or location, so your data stays safe and private at all times.
GPT Detector works very fast and you’ll usually get results in just a few seconds. Even if you’re checking longer content, like a full academic paper with multiple chapters or a long blog post with several sections, the tool processes it quickly. You won’t have to wait around for minutes to know if there’s AI-generated text in your content, which saves you time when you’re in a hurry.
Absolutely GPT Detector is a great choice for checking academic papers for AI content. This includes essays, research papers, theses and even dissertations that students and researchers often work on. It spots AI content from GPT-5, GPT-4 and ChatGPT in these papers easily and gives clear reports that show exactly where AI might be present. It’s also free to use, making it perfect for anyone who needs to ensure their academic work is original.
GPT Detector is designed to be highly accurate and it correctly identifies most AI-generated text from GPT models. While no AI detection tool is 100% perfect in every case, this tool regularly updates its technology to keep up with new model versions and changes. This means it rarely misses AI content, even in longer or more complex texts. Many users, including students and freelance writers, often praise its accuracy for academic papers and client work.
You can use GPT Detector on both phones and computers because its design is fully responsive to all devices. Whether you’re on a laptop checking a thesis at your desk, using a tablet while sitting on the couch or using your phone to review a short article on the go, the tool’s interface is easy to use. The input box and results page adapt well to different screen sizes, so you won’t have trouble reading or interacting with the tool.
While GPT Detector doesn’t restrict the number of checks, it has specific limits for single checks: the text you input can be up to 20000 words, and if you upload files like TXT or PDF, the file size must be within 40MB. You can still check long content — just split it into parts if it exceeds 20000 words, or compress large files to meet the 40MB limit. Best of all, this checking is free, and no sign-up is needed to access the tool.
Yes, GPT Detector gives clear and easy-to-understand reports that point out exactly which parts of your text might be AI-generated. The report doesn’t just say "there’s AI content" it highlights specific sections, like individual sentences or entire paragraphs, that come from GPT-5, GPT-4 or ChatGPT. This helps you know exactly where to review or edit your content, so you can fix any AI parts without having to read through the whole text again.
