AI tools for plagiarism detection

3,708 live tools · ranked by monthly traffic and community votes · dead links removed automatically

Has API Verified
1

Copyleaks is a content authenticity platform that checks whether text was written by AI and whether it copies existing sources.

PAID AI Detection & Safety 20 days ago
25 0
2

Developers get API access for building AI detection into their own apps

FREEMIUM AI Detection & Safety 8 months ago
202 0
3

Phrasly is an AI writing workspace built around a humanizer that rewrites machine-generated text so it reads like natural human writing, without watermarks.

FREE TRIAL AI Detection & Safety 19 days ago
30 0
4

Winston AI is an AI content detector and plagiarism checker built for education, SEO, and writing.

FREEMIUM AI Detection & Safety 20 days ago
28 0
5

Smodin is an AI writing toolkit that puts an AI content detector, an AI humanizer, a plagiarism checker, an AI writer, a rewriter and an AI chat assistant in one account.

Writing & Content 19 days ago
29 0
6

AHelp starts at $4

FREEMIUM Writing & Content 8 months ago
131 0
7

StudyPro gives you 500 free credits daily

FREEMIUM Writing & Content 8 months ago
133 0
8

Scribbr Plagiarism Checker compares a document with a database of 99 billion web pages and 8 million publications and shows where the text matches existing sources.

FREE Writing & Content 20 days ago
25 0
9

Turnitin is an academic integrity suite that schools, universities, and research organizations use to verify originality and deal with AI-written text.

AI Detection & Safety 20 days ago
27 0
10

Writing confidence that follows you everywhere

FREEMIUM Writing & Content 9 months ago
273 0
11

Rephrase until it sounds right

FREEMIUM Writing & Content 9 months ago
232 0
12

ZeroGPT processes text quickly to detect AI-generated content

PAID AI Detection & Safety 8 months ago
245 0
13

Used by over 10 million teachers and students across more than 100 countries, GPTZero detects AI-generated text across major language models while providing a suite of writing verification tools

FREEMIUM AI Detection & Safety 2 months ago
122 0
14

Trinka is an AI writing assistant and grammar checker aimed at academic and technical writing.

FREE Writing & Content 20 days ago
34 0
15

Yomu AI is an academic writing assistant that drafts, edits and cites essays, research papers, literature reviews and theses inside one document editor.

PAID Writing & Content 20 days ago
34 0
16

WriterZen costs nothing for 15 days

FREEMIUM Writing & Content 8 months ago
136 0
17

UnGPT takes AI-generated text and rewrites it to mimic natural human writing patterns that slip past detection algorithms

PAID Writing & Content 7 months ago
152 0
18

Pangram Labs makes an AI detector that checks whether text was written by a person or generated by a language model.

FREEMIUM AI Detection & Safety 19 days ago
36 0
19

ZeroGPT Plus can detect if text came from AI with high accuracy

FREEMIUM AI Detection & Safety 8 months ago
216 0
20

Dechecker AI breaks down AI detection differently

FREEMIUM AI Detection & Safety 8 months ago
171 0
21

The free plan hands you 5,000 characters per check

FREEMIUM AI Detection & Safety 7 months ago
129 0