GPTZero Alternatives (January 2026)

GPTZero

AI Detector - the Original AI Checker for ChatGPT & More

https://gptzer.me/

Covered by >100 media outlets, GPTZero is the most advanced AI detector for ChatGPT, GPT-4, Gemini. Check up to 50000 characters for AI plagiarism in seconds.

3.8/5

205+ reviews

Reviewed on:

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1.
The Most Trusted AI Detector | ChatGPT Detection Tool
https://gowinsto
.ai/

Winston AI is the industry leading AI content detector and plagiarism checker software for ChatGPT, GPT4, Google Gemini and more.

2.
Originality AI Plagiarism and Fact Checker - Publish With Integrity
https://originalit
.ai/

At Originality.ai we provide a complete toolset (AI checker, Plagiarism Checker, Fact Checker and Readability Checker) that helps Website Owners, Content Marketers, Writers, Publishers and any Copy Editor hit Publish with Integrity.

3.
Plagiarism Checker - 100% Accurate Plagiarism Detector Online
https://plagiarismchec
.org/

PlagiarismCheck is an accurate plagiarism checker with percentage that can help to assess the originality of any text for teachers and students online

4.
Free Online Plagiarism Checker - Check Plagiarism
https://www.check-plagiaris
.com/

Plagiarism Checker helps you check plagiarism quickly and accurately. The best plagiarism detector for students, teachers, and writers.

5.
AI Detector, AI Checker, & AI Humanizer | Undetectable AI
https://undetectabl
.ai/

Use our free AI detector to check if your AI-generated content will be flagged. Then, click to humanize your AI text and bypass all AI detection tools.

6.
Original Writing, Made Easy | Quetext
https://www.quetex
.com/

Plagiarism Checker by Quetext. Our proprietary DeepSearchâ„¢ plagiarism checker searches for similarities across billions of documents

7.
AI-Based Plagiarism & AI Content Detection | Copyleaks
https://copyleak
.com/

Instantly detect plagiarized content, AI generated content & more with Copyleaks, the only AI-based platform used by millions worldwide.

8.
Plagiarism Checker X - Text Similarity Detector
https://plagiarismchecker
.com/

Check your content with Plagiarism Checker X. A special software for Students, Teachers and Professionals to find the duplicate content.

9.
Plagiarism Detector: Reliable Detection Tools | Turnitin
https://www.turniti
.com/products/feedback-studio/

Ensure originality in your academic work with Turnitin's plagiarism detector. Easily identify copied content and maintain integrity. Click here for more.