Plagiarism Detection NLP Tools

Tools for detecting plagiarism, text similarity, and duplicate content across documents, code, or web sources. Does NOT include general text comparison utilities, code diff tools, or copyright/license scanning without plagiarism intent.

There are 20 plagiarism detection tools tracked. 1 score above 50 (established tier). The highest-rated is fossology/safaa at 58/100 with 7 stars and 761 monthly downloads.

Get all 20 projects as JSON

curl "https://pt-edge.onrender.com/api/v1/datasets/quality?domain=nlp&subcategory=plagiarism-detection&limit=20"

Open to everyone — 100 requests/day, no key needed. Get a free key for 1,000/day.

#	Tool	Score	Tier	Stars	Language
1	fossology/safaa Agent to compliment FOSSology's copyright scanner and find false positive findings.	58	Established	7	Python
2	platisd/duplicate-code-detection-tool A simple Python3 tool to detect similarities between files within a repository	45	Emerging	203	Python
3	Crypt0knights/Plagiarism-Detector A Web Platform to detect plagiarised documents or plain text.	38	Emerging	9	JavaScript
4	hhhhhhhhhn/HookeJs An open source plagiarism detector built in node.	38	Emerging	21	JavaScript
5	izikeros/sentence-plagiarism Compare sentences from input document with all sentences from reference...	34	Emerging	3	Python
6	ShubhamDeodhar/CheckMate In the time when the world has come on the internet for education full time,...	30	Emerging	16	HTML
7	noorkhokhar99/Plagiarsim-Checker Plagiarsim checker using cosine algorithm #Plagiarsimchecker	30	Emerging	10	Python
8	LEADisDEAD/Plagiarism-Checker Plagiarism Checker is a Flask-based web application that allows users to...	22	Experimental	1	Python
9	Subhajit25Mondal/Total-Plagiarism-Checker Total Plagiarism Checker is Plagiarism Checker which can scan PDF's content...	22	Experimental	6	CSS
10	ashhuxt/Advanced-Code-Plagiarism-Framework Advanced Code Plagiarism Detection Framework (ACPDF): A high-performance...	19	Experimental	—	HTML
11	GitProSolutions/Plagiarism-Checker Plagiarism Checker is a Python program that compares two text files to...	19	Experimental	3	Python
12	tomasanchez/heimdallr A powerful and intelligent plagiarism detection system designed to uphold...	19	Experimental	3	Jupyter Notebook
13	khadija267/Plagiarism-Detection A neural network classifier for detecting plagiarism in student answers	17	Experimental	1	Jupyter Notebook
14	roy405/sourceCodeSimilarityDetection An experimental application for detection of plagiarism in source code using...	17	Experimental	1	Python
15	prachijain136/Plagiarsim Plagarism Detector Using TFIDF & Cosine similarity	13	Experimental	12	Python
16	CHINHUICHU/Chameleons-Pro A Chinese similarity detection system helps users to compare multiple...	13	Experimental	10	JavaScript
17	prasoonsoni/PlagiCheck One Stop Solution For Multi Level Plagiarism Detection	12	Experimental	5	JavaScript
18	orvil1026/Plagiarism-in-Hindi An Application to check plagiarism in Hindi	11	Experimental	3	HTML
19	anusha0934/plagiarism-detection AI vs Human Text Detector using NLP and Machine Learning with Streamlit deployment	11	Experimental	—	Jupyter Notebook
20	greeshmaPr/Plagiarism-Detector In this project, I create a plagiarism detector prototype (deployed using...	10	Experimental	2	Jupyter Notebook