Sites and apps similar to GPTKit include Originality.AI. It's paid, but Prafero is free. Other options are Unicheck, Crossplag, Quetext and Dupli Checker. In total there are six Plagiarism Checkers like GPTKit.
Detects plagiarism and AI-generated text for online publishers, agencies, and website buyers, supporting full site scans, team collaboration, user-specific scan histories, and automated billing to ensure authenticity and originality in content management workflows.
Canada
Unicheck (ex. Unplag) is an accurate plagiarism detection engine. Fast as light, Unplag performs real-time check against real-time web index.
Ukraine
Crossplag™ is the most holistic tool for plagiarism checking dedicated to democratizing plagiarism checking while enabling users to have full ownership and control over their data.
Plagiarism Checker by Quetext. Our proprietary DeepSearch™ plagiarism checker searches for similarities across billions of documents
United Kingdom
Prafero is an all-in-one website intelligence platform for auditing any site in one place. It analyzes SEO, performance, security, DNS, and tech stack signals, then turns them into clear insights so founders, marketers, developers, and agencies can make faster website decisions.
