AI Plagiarism Detector
The best 50 AI Plagiarism Detector tools - Free & Paid
Explore 50 AI for AI Plagiarism Detector
The AI plagiarism checker from plagiarismcheck.org uses advanced AI technology to detect AI-generated content and plagiarism, supports various file formats, and is useful in academia, SEO, and recruitment.
Freemium
- $5.99
PlagiarismSearch.com compares submitted text to a vast database of web pages, journals, and printed sources, highlighting matches and providing similarity reports, AIācontent detection, readability checks, spellācheck, and API integration for realātime academic integrity.
Paid
NoPlagio checks uploaded documents against 80āÆmillion academic articles and live web sources, supporting 129 languages. It gives similarity scores, colorācoded plagiarism types (citation, paraphrase, improper reference), source links, and protects privacy by never storing files.
Freemium
GPTZero AI Detector scans documents for potential AI-generated content, providing in-depth results on AI probabilities, vocabulary analysis, and hallucination detection, as well as plagiarism checking and authorship verification capabilities.
Freemium
- $12/mo
Scribbr offers academic writing support with professional editing, plagiarism detection, citation generation across styles, AIāpowered proofreading, paraphrasing, summarizing, sentence rewriting, and a Chrome extension for inābrowser citations, helping students and researchers produce polished manus
Freemium
AI Essay Checker spots AIāgenerated content, grammar errors, and plagiarism in real time. It offers multilingual support, a rich text editor, and local processing for privacy, aiding students, teachers, writers, SEO pros, and legal professionals.
Freemium
Originality.ai evaluates text for AI generation, plagiarism, factual accuracy, readability, grammar, and SEO. The Chrome extension and web app enable onāpage checks, bulk scanning, PDF uploads, and API integration for writers and editors.
Free trial
- $12.95/mo
This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.
Freemium
AHelp is an AI platform offering essay writing, paraphrasing, grammar and plagiarism checks, and AI source finding in multiple languages. It generates outlines, expands paragraphs, and validates originality, streamlining drafting and quality control.
Subscription
- $4.17/mo
PerfectEssayWriter.ai creates structured, plagiarismāfree essays for highāschool to professional users. Set word count, essay type, academic level, tone, and citation style. Supports 27+ languages, realātime research prompts, autoācitation, live editing, and undetectable output.
Subscription
The Free AI Plagiarism Checker accurately detects plagiarism in multiple languages by scanning billions of sources. It supports various file formats, analyzes up to 200,000 words, and provides detailed reports on total and partial matches.
Freemium
AI-based plagiarism remover rewrites duplicate text while preserving context and readability, offering modes (Word Changer, Formal, Shorten), file upload/download, 15+ languages and integrated tools for checking, paraphrasing, grammar, summarizing and citation generation and export.
Free
Copyleaks delivers AI text and image detection, plagiarism checking, grammar correction, and text moderation in 30+ languages. It integrates via API, LMS, browser extensions, and Google Docs, supports major LLMs, and ensures secure, compliant workflows for education and enterprise.
Free
- $13.99/mo
Aithor automates essay creation, literature reviews, and topic ideation for academic and creative writers. It provides access to 10āÆmillion verified sources, manages MLA/APA citations, offers grammar checking, paraphrasing, summarization, and tone adjustment to streamline writing.
Freemium
ZeroGPT is a comprehensive AI tool suite offering advanced features for content detection, text refinement, and translation, including AI detection, plagiarism checking, humanization, and summarization.
Freemium
- $7.99/mo
QuillBot is a writing and editing tool offering features such as paraphrasing, grammar and plagiarism checks, citation generation, and content creation assistance, all accessible through a Chrome extension or online platform.
Freemium
- $33/mo
Quetext is an allāināone writing platform offering plagiarism detection, AI content detection, realātime grammar and spell correction, summarization, paraphrasing, and citation generation. It supports PDF, DOC, TXT files with bulk uploads for students, teachers, researchers, and creators.
Freemium
- $8/mo
Advacheck employs an AI engine to detect machineāgenerated text from models like ChatGPT, Gemini, Llama, etc., flagging AI authorship and plagiarism with <0.5% false positives. It offers dailyāupdated detection, academic integrity tools, and Moodle integration.
Free
AI Detector evaluates text for AI authorship likelihood, delivering a percentage score. It compares style, vocabulary, sentence length, and coherence against extensive human and AI datasets, enabling targeted edits for academic, SEO, and publishing standards.
Free
- $5.91
Lunchbreak AI scans documents with Turnitin, GPTZero and other detectors, highlights AIāflagged sections, and offers oneāclick rewriting that preserves meaning and voice. It supports academic, research, and business writing, ensuring detector compliance without loss of originality.
Freemium
PaperTyper generates academic drafts from prompts, offering builtāin plagiarism checking, grammar correction, and citation formats (MLA, APA, Chicago, Harvard, Turabian). Users can edit, format, and export content as Word or PDF at any time.
Free
Paraphrasing Tool rewrites up to 2,000 words per batch, allowing style selection and shortāform editing in 110+ languages. It provides a variability score, a plagiarism checker, and serves marketers, copywriters, educators, and students.
Freemium
- $29/mo
Plag checks documents in 129 languages against 80āÆmillion academic articles, detecting copyāpaste, paraphrasing, improper citations, and AIāgenerated content. It highlights findings, provides similarity and risk scores, links to original sources, and keeps uploads confidential.
Freemium
Wordvice AI provides realātime grammar checking, paraphrasing, translation, summarization, plagiarism and AIācontent detection, plus citation generation across multiple languages. It integrates with Chrome and Word, supporting students, researchers, professionals, teams, and offers onādemand human e
Freemium
- $8.45/mo
AI Content Detector - Trusted GPT-4 analyzes text to identify human-written versus AI-generated content. It offers document uploads, supports multiple languages, and provides percentage-based insights on originality, making it useful for educators and content creators.
Free
uPass AI rewrites AIāgenerated content to lower detection scores from Turnitin, GPTZero, and Copyleaks. It offers simultaneous detection checks and humanālike rephrasing, preserving meaning while improving grammar and reducing redundancy for academic writing.
Freemium
- $12.99/mo
AIāpowered essay generator producing full drafts in under 90 seconds. Users input topic, level, type, and length; it creates structured, original content with plagiarism check, APA/MLA/Chicago formatting, and a toneāenhancing humanizer. No account required, data encrypted.
Subscription
- $7.99/mo
AI Paraphrasing Tool rewrites user text into unique, grammatically correct output using six specialized modes (Creative, Fluency, Formal, Academic, Blog, AntiāPlagiarism). It detects plagiarism, preserves citations and keyword placement, and exports results to Word, PDF, or TXT.
Paid
TextAdviser delivers AIāpowered language tools: grammar checking, plagiarism detection, syntactic analysis, fast text generation, rewriting, tone humanization, summarization, and name/title creation. It supports English, Spanish, Portuguese, Italian, French, and German for writers, students, markete
Free
AI Text Humanizer turns machineāgenerated prose into natural, humanāreadable text, removes repetitive patterns, offers readability scores, and supplies API and web interface with counters. It supports multiple languages, protects data, and assists students, writers, marketers, and corporate teams.
Freemium
AI Essay Writer is a webābased tool that generates academic essays, outlines, and paragraph suggestions based on topic, type, tone, and citations. It includes grammar checks, AI detection, and reference formatting, aiding students and researchers.
Freemium
- $5/mo
ContentDetector.AI is a free tool that identifies AI-generated written text, including Chat GPT and GPT 3 content, and provides an estimated percentage score of AI generation likelihood.
Free
Humanize AI rewrites AIāgenerated text into natural, humanāreadable prose. It offers AI detection, plagiarism checking, grammar correction, paraphrasing, and an AI Writer. Its AI Article Agent creates keywordāoptimized content while maintaining readability for academics, marketers, and SEO writers.
Subscription
- $7/mo
CoWriter AI assists students, researchers, and writers by generating text, providing unlimited suggestions, autoāformatting citations (APA, MLA, Chicago), offering advanced grammar and plagiarism checks, and supporting interactive drafting with secure, private editing and export options.
Subscription
- $11.99/mo
AI Humanizer refines text by restructuring sentences to improve flow and reduce mechanical patterns while preserving meaning. It offers adjustable rewrite modes, selective paragraph editing, keyword protection, and builtāin AI detection and plagiarism checks.
Free trial
- $8/mo
Essay Builder AI creates structured, plagiarismāfree essays quickly. Users choose type, length, and topic, then receive coherent text in seconds. It offers a dashboard, builtāin plagiarism check, and PDF/Word export, suitable for all academic levels.
Freemium
- $5/mo
Essay AI writes essays from titles, outlines, or brief prompts in multiple languages. It includes builtāin detection for GPTZero, ZeroGPT, Turnitin, integrated plagiarism checks, intelligent outlining, adjustable length, and polished, humanālike prose.
Subscription
- $17.98/mo
BypassAI rewrites AIāgenerated content to bypass detection tools like GPTZero, Turnitin, and ZeroGPT, removing watermark patterns and spamālike language. It supports 30+ languages, preserves meaning, and improves SEOāfriendly readability for academic, editorial, and marketing use.
Subscription
- $6.99/mo
Free AI Essay Writer creates structured academic essays across topics, letting users set length, tone, citation style (APA, MLA, Chicago). It generates intro, body, conclusion, references, and offers AIādetector and plagiarism checks, aiding quick drafting for students and nonānative speakers.
Paid
Getsolved.ai is a comprehensive AI toolkit for text analysis and refinement. It helps students, professionals, and creators verify originality, check facts, improve grammar, and rewrite content.
Freemium
- $14.99/mo
Rewrites text in seven stylesāSimple, Creative, Formal, etc.āacross 17 languages, preserving meaning while enhancing grammar, punctuation, and readability. Removes duplicate phrases for plagiarismāfree output and works with plagiarism/readability tools for students, writers, and SEOs.
Paid
- $3
FreeEssayWriter.ai generates essays, outlines, research papers, and summaries on demand. Users set topic, word count, academic level, and citation style (APA, MLA, Chicago, IEEE). The AI delivers instant, plagiarismāfree text without registration.
Free
EssayWriter is an AIāpowered platform that drafts, edits, and checks essays, offering realātime writing assistance, integrated academic database citations in APA/MLA/Chicago, plagiarism detection, and PDF/DOC export for students, educators, and researchers.
Free
AI Essay Writer generates original essays in over 50 languages. Users set topic, type, length, and language; an optional undetectable mode reduces AI detection. It includes AI detection, plagiarism checking, and editing tools for personalized, compliant essays.
Subscription
- $17.98/mo
SmartStudi is an AI writing assistant that offers plagiarism checking, AI detection (10% confidence), paraphrasing to evade detection, citation generation in multiple styles, document summarization, grammar correction, and file uploads from Google Drive, PDFs, DOCX, and PPTX.
Freemium
- $9.99/mo
AI Essay Writer drafts essays in under a minute using Genius, Expand, Paraphrase, Summarise, and Continue modes. Users set essay type, level, citation style, and instructions. Plagiarism checks and editing tools preserve originality. Drafts export to PDF; 28 languages supported.
Free
AI Humanizer rewrites AIāgenerated text into natural, plagiarismāfree content that passes GPTZero, Originality.ai, and Turnitin checks, correcting grammar, punctuation, and spelling. It supports multiple languages and aids students, writers, and SEO professionals.
Freemium
This AI paraphrasing tool lets users paste essays, articles, or sentences and receive a rewritten version within seconds. It preserves meaning, corrects grammar, removes duplicate phrasing, and ensures academic compliance without account creation.
Free
DetectingāAI scans text in 50+ languages, marking AIāgenerated sentences with probability scores. It integrates with Chrome, Moodle, Zapier, and offers an API, delivering up to 98% accuracy and low falseāpositives while protecting user privacy.
Freemium
- $7/mo
AI Paper Writer Online drafts essays, research papers, and reports from userāspecified topics, pulls data from multiple sources, autoāformats citations (APA, MLA, Chicago), and includes grammar and plagiarism checksāno registration or payment required.
Free