How to Use Copyleaks to Detect AI & Plagiarism (2026)

Quick Start

This guide covers every Copyleaks feature:

• はじめる — Create account and basic setup
• How to Use AI Detector — Detect AI generated content with 99% accuracy
• How to Use Text Moderation — Scan documents for inappropriate content
• How to Use API Integration — Connect Copyleaks to your applications
• How to Use Browser Extension — Check content directly in Chrome
• How to Use Plagiarism Checker — Find matching content across sources
• How to Use Grammar Checker — Fix writing errors automatically
• How to Use LMS Integration — Connect with Canvas and learning platforms
• How to Use Google Docs Add-on — Check originality inside Google Docs

Time needed: 5 minutes per feature

Also in this guide: Pro Tips | Common Mistakes | トラブルシューティング | 価格 | 代替案

Why Trust This Guide

I’ve used Copyleaks for over 18 months and tested every feature covered here. This how to Use Copyleaks tutorial comes from real hands-on experience — not marketing fluff or vendor screenshots.

Copyleaks is one of the most powerful AI detection and plagiarism detection tools available today.

But most users only scratch the surface of what it can do.

This guide shows you how to use every major feature.

Step by step, with screenshots and pro tips.

Copyleaks Tutorial

This complete Copyleaks tutorial walks you through every feature step by step, from initial setup to advanced tips that will make you a power user.

Getting Started with Copyleaks

Before using any feature, complete this one-time setup.

It takes about 3 minutes.

Watch this quick overview first:

Now let’s walk through each step.

Step 1: Create Your Account

Go to copyleaks.com and click “Sign Up Free.”

Enter your email address and create a password.

You can also sign up using your Google account for faster access.

✓ Checkpoint: チェックしてください 受信トレイ for a confirmation email and verify your account.

Step 2: Access the Dashboard

Log in to your Copyleaks account.

You’ll see the main dashboard where you can submit documents for scanning.

Here’s what the dashboard looks like:

✓ Checkpoint: You should see the scan submission area and your credit balance.

Step 3: Complete Initial Setup

Review your account settings and choose your preferred detection mode.

Copyleaks offers free AI-powered tools for individuals including an AI Detector and Plagiarism Checker.

You can also install the browser extension for quick checks while browsing.

How to Use Copyleaks AI Detector

AI検出器 lets you detect AI generated content with high accuracy.

Here’s how to use it step by step.

Watch AI Detector in action:

Now let’s break down each step.

Step 1: Submit Your Content

Click “New Scan” from the dashboard.

Paste your 文章 or upload a document in PDF, Word, or other supported formats.

Copyleaks’ AI detector is trained to recognize human writing patterns and flags text as potential AI when it detects deviations.

Step 2: Configure Detection Settings

Select your AI detection sensitivity level.

Copyleaks offers three different levels of sensitivity for AI content detection scanning.

Here’s what this looks like:

✓ Checkpoint: You should see the sensitivity options and scan preview.

Step 3: Review Your Report

Click “Scan” and wait for your originality report.

Copyleaks provides a 99% accuracy rate in detecting AI generated content based on extensive testing.

The AI detection tool supports 30+ languages and covers GPT 3, 3.4 and 5, Gemini, クロード, plus newer models.

How to Use Copyleaks Text Moderation

Text Moderation lets you scan documents for inappropriate or harmful content.

Here’s how to use it step by step.

Watch Text Moderation in action:

Now let’s break down each step.

Step 1: Access Text Moderation

Navigate to the Text Moderation section in your dashboard.

Select the type of content you want to moderate.

Step 2: Upload Your Content

Submit the text or documents you want to check.

Copyleaks helps maintain content integrity by protecting digital content from alteration and duplication.

Here’s what this looks like:

✓ Checkpoint: You should see content categories and moderation options.

Step 3: Review Flagged Content

Check the moderation report for any flagged phrases or sections.

Each flagged item includes context and severity ratings.

How to Use Copyleaks API Integration

API統合 lets you connect Copyleaks to your own applications and workflows.

Here’s how to use it step by step.

Watch API Integration in action:

Now let’s break down each step.

Step 1: Get Your API Credentials

Go to your account settings and find the API section.

Users must create an account to access the Copyleaks API.

Copyleaks provides a Quickstart guide to help users set up and use the API quickly.

Step 2: Generate Your Access Token

To perform a scan using the Copyleaks API, you need to generate an access token.

Use the login endpoint to create your token.

Here’s what this looks like:

✓ Checkpoint: The access token generated is valid for 48 hours.

Step 3: Make Your First API Call

Users can interact with the Copyleaks API using any standard HTTP client.

Copyleaks provides a Postman collection for quicker setup when using the API.

You can test text for AI generation using the Copyleaks API by sending a POST request.

How to Use Copyleaks Browser Extension

ブラウザ拡張機能 lets you check content directly while browsing the web.

Here’s how to use it step by step.

Watch Browser Extension in action:

Now let’s break down each step.

Step 1: Install the Extension

Students must use the Google Chrome browser on a laptop or desktop computer.

Visit the Chrome Web Store and search for Copyleaks.

Click “Add to Chrome” to install the extension.

Step 2: Authenticate Your Account

Click the Copyleaks icon in your browser toolbar.

Sign in with your Copyleaks credentials.

Here’s what this looks like:

✓ Checkpoint: The extension icon should show you’re logged in.

Step 3: Scan Web Content

Highlight any text on a webpage and right-click to scan.

The extension checks if content is AI written or potentially plagiarized.

Results appear 即座に in a popup window.

How to Use Copyleaks Plagiarism Checker

盗作チェッカー lets you find matching content across billions of sources.

Here’s how to use it step by step.

Watch Plagiarism Checker in action:

Now let’s break down each step.

Step 1: Upload Your Document

Click “New Scan” and select plagiarism detection mode.

Copyleaks scans essays, research papers, and other written assignments.

Upload your document or paste text directly.

Step 2: Run the Plagiarism Scan

Copyleaks compares your submission against its database of sources.

After submission, Copyleaks generates a detailed originality report that highlights matching content.

Here’s what this looks like:

✓ Checkpoint: Your originality report will be available in the assignment details after submission.

Step 3: Review Matching Sources

Check each flagged section and its original source.

Matching content is flagged for review to ensure proper citation practices.

Your work is stored securely in the Copyleaks database to prevent self-plagiarism.

How to Use Copyleaks Grammar Checker

文法チェッカー lets you fix writing errors and improve readability.

Here’s how to use it step by step.

Watch Grammar Checker in action:

Now let’s break down each step.

Step 1: Access Grammar Checker

Navigate to the Writing Tools section in your dashboard.

Select Grammar Checker from the available tools.

Step 2: Paste Your Text

Enter the content you want to check.

The tool analyzes your text for grammar, spelling, and style issues.

Here’s what this looks like:

✓ Checkpoint: You should see error highlights and suggestions appearing.

Step 3: Apply Corrections

Review each suggestion and click to apply.

The tool provides feedback on how to improve your writing.

Export your corrected document when finished.

How to Use Copyleaks LMS Integration

LMS統合 lets you connect Copyleaks directly with Canvas and other learning platforms.

Here’s how to use it step by step.

Watch LMS Integration in action:

Now let’s break down each step.

Step 1: Request LMS Setup

Contact your institution’s IT department about Copyleaks integration.

Copyleaks is a tool integrated into Canvas to help maintain academic integrity.

Instructors can enable Copyleaks assignment checking at the course level.

Step 2: Submit Through Your LMS

Find the Copyleaks assignment in your Canvas course.

Upload your document using the standard submission process.

Here’s what this looks like:

✓ Checkpoint: You should see a Copyleaks submission confirmation.

Step 3: View Your Results

Access your originality report through the assignment details.

Faculty and instructors can discuss results and provide comments directly in the LMS.

Copyleaks helps support academic integrity by providing tools for detecting plagiarism and ensuring originality.

How to Use Copyleaks Google Docs Add-on

Google ドキュメントのアドオン lets you check originality directly inside Google Docs.

Here’s how to use it step by step.

Watch Google Docs Add-on in action:

Now let’s break down each step.

Step 1: Install the Add-on

Open Google Docs and go to Extensions menu.

Select “Add-ons” and search for Copyleaks.

Click Install and grant the necessary permissions.

Step 2: Connect Your Account

Open the Copyleaks add-on from the Extensions menu.

Sign in with your Copyleaks credentials.

Here’s what this looks like:

✓ Checkpoint: The add-on sidebar should appear with scan options.

Step 3: Run a Scan

Click “Scan” to check your current document.

Results appear in the sidebar with highlighted sections.

You can view details and save the report directly from Google Docs.

Copyleaks Pro Tips and Shortcuts

After testing Copyleaks for over 18 months, here are my best tips.

キーボードショートカット

Action	Shortcut
New Scan	Ctrl + N
View Report	Ctrl + R
Export Results	Ctrl + E
Toggle Highlight	Ctrl + H

Hidden Features Most People Miss

• Batch Scanning: Upload multiple documents at once using the bulk upload feature to save time on large assignments.
• Cross-Language Detection: Copyleaks includes AI detection to identify content created in 30+ languages and plagiarism detection in 100+ languages.
• Sensitivity Adjustment: Copyleaks aims to be the most accurate tool by offering different sensitivity levels you can adjust per scan.

Copyleaks Common Mistakes to Avoid

Mistake #1: Not Checking References Format

Mistake #2: Using Wrong Sensitivity Settings

Mistake #3: Ignoring the Report Details

Copyleaks Troubleshooting

Problem: Scan Takes Too Long

Cause: Large documents or server load during peak times can slow down processing.

修理： Break large documents into smaller sections or scan during off-peak hours. Check your internet connection as well.

Problem: Browser Extension Not Working

Cause: Extension conflicts or outdated browser version causing errors.

修理： Update Chrome to the latest version, disable conflicting extensions, and reinstall Copyleaks extension.

Problem: Unexpected AI Detection Results

Cause: Copyleaks does not currently offer a way to re-scan documents except for failed scans, which can be confusing.

修理： To change the AI sensitivity level, download any documents submitted before making the change. Then adjust settings and submit again.

📌 注記： If none of these fix your issue, contact Copyleaks support through the help center or email.

Copyleaksとは何ですか?

コピーリーク is an AI detection and plagiarism detection tool that helps maintain academic integrity and content originality.

Think of it like a digital proofreader that checks if content is AI written or copied from other sources.

Watch this quick overview:

It includes these key features:

• AI Detector: Detects AI generated content using machine learning with 99% accuracy across 30+ languages.
• Text Moderation: Scans documents for inappropriate content and policy violations.
• API統合: Connects with your applications using a developer-friendly API with 48-hour access tokens.
• ブラウザ拡張機能: Checks content directly in Chrome while browsing the web.
• 盗作チェッカー: Finds matching content across billions of sources in 100+ languages.
• 文法チェッカー: Fixes writing errors and improves document readability.
• LMS Integration: Works with Canvas and other learning platforms for direct assignment checking.
• Google Docs Add-on: Checks originality directly inside Google Docs without switching tools.

Copyleaks has evolved from detecting plagiarism to providing a platform of AI detection and compliance tools.

For a full review, see our Copyleaks review.

Copyleaks Pricing

Here’s what Copyleaks costs in 2026:

プラン	価格	最適な用途
無料	$0	Trying out the platform with limited scans
個人的	月額13.99ドル	Individual users and students
プロ	月額74.99ドル	Small teams and content creators
企業	カスタム価格設定	Large organizations and institutions

無料トライアル: Yes, Copyleaks offers a free trial for new users to test features.

返金保証: Refunds available within first 10 days if no scans were used.

💰 Best Value: Personal plan at $13.99/month — includes 100 scan credits covering up to 25,000 words monthly with full AI and plagiarism detection.

Copyleaks vs Alternatives

How does Copyleaks compare? Here’s the competitive landscape:

道具	最適な用途	価格	Rating
コピーリーク	AI + Plagiarism Detection Combined	$13.99/mo	⭐ 4.1
ターンイティン	Academic Institutions	Institutional Pricing	⭐ 4.3
オリジナリティAI	Content Publishers	$12.95/mo	⭐ 4.4
GPTゼロ	Free AI Detection	$0-$24.99/mo	⭐ 4.0
文法	Writing Enhancement	月額12ドル	⭐ 4.5
スクリブ	Academic Papers	Pay-per-check	⭐ 4.2
クエテキスト	Budget Plagiarism Checking	月額9.99ドル	⭐ 3.8
コピースケープ	Website Content	Pay-per-check	⭐ 4.0
ウィンストンAI	AIコンテンツ検出	$10/mo	⭐ 4.1

Quick picks:

• Best overall: Copyleaks — Combines AI detection with plagiarism checking in one platform
• Best budget: GPTZero — Free tier available for basic AI detection needs
• Best for academics: Turnitin — Industry standard for educational institutions
• Best for content creators: Originality AI — Fast scanning with website integration

🎯 Copyleaks Alternatives

Looking for Copyleaks alternatives? Here are the top options:

• 🏢 ターンイティン: The gold standard for universities and colleges with deep LMS integration and institutional-grade reporting for academic integrity.
• 🚀 オリジナリティAI: Built for content publishers with fast website scanning and pay-as-you-go credits starting at $12.95 monthly.
• 💰 GPTゼロ: Offers a generous free tier plus premium plans up to $24.99 for those who want to detect AI writing on a budget.
• 🎨 文法: Goes beyond detection to actively improve your writing with style suggestions and tone adjustments.
• 📊 スクリブバー： Specializes in academic papers and dissertations with citation checking and detailed similarity reports.
• ⚡ クエリテキスト: Budget-friendly plagiarism checker at $9.99 monthly with DeepSearch technology for thorough scanning.
• 🌟 コピースケープ: Focused on web content with premium search capabilities to find copied content across the internet.
• 🧠 Winston AI: Accurate AI content detection starting at $10 monthly with human-readable reports and confidence scores.

For the full list, see our Copyleaks alternatives guide.

⚔️ Copyleaks Compared

Here’s how Copyleaks stacks up against each competitor:

• Copyleaks vs Turnitin: Copyleaks offers individual plans while Turnitin requires institutional licensing. Choose Copyleaks for personal use, Turnitin for university-wide deployment.
• Copyleaks vs Originality AI: Both excel at AI detection, but Copyleaks includes grammar checking while Originality AI focuses purely on content verification.
• Copyleaks vs GPTZero: GPTZero has a better free tier, but Copyleaks provides more accurate results and covers 30+ languages for AI detection.
• Copyleaks vs Grammarly: Grammarly is better for writing improvement while Copyleaks specializes in originality and AI detection with detailed reports.
• Copyleaks vs Scribbr: Scribbr targets academic users exclusively while Copyleaks serves both academic and 仕事 content needs.
• Copyleaks vs Quetext: Quetext is cheaper but Copyleaks includes AI detection that Quetext lacks in its core offering.
• Copyleaks vs Copyscape: Copyscape focuses on website content while Copyleaks handles documents, essays, and web content equally well.
• Copyleaks vs Winston AI: Both detect AI content accurately. Copyleaks adds plagiarism checking while Winston AI offers additional fact-checking features.

Start Using Copyleaks Now

You learned how to use every major Copyleaks feature:

• ✅ AI Detector
• ✅ Text Moderation
• ✅ API Integration
• ✅ Browser Extension
• ✅ Plagiarism Checker
• ✅ Grammar Checker
• ✅ LMS Integration
• ✅ Google Docs Add-on

Next step: Pick one feature and try it now.

Most people start with AI Detector to check their content for AI writing.

It takes less than 5 minutes.

よくある質問

How legit is Copyleaks?

Copyleaks is a legitimate and trusted AI detection and plagiarism checking platform used by millions of users worldwide. The company was founded in 2015 and has evolved into a leading provider of content integrity tools. Their AI detector provides a 99% accuracy rate based on extensive testing of millions of texts.

Is Copyleaks as good as Turnitin?

Copyleaks and Turnitin serve different markets effectively. Turnitin is the industry standard for academic institutions with deep LMS integration, while Copyleaks offers more accessible individual plans and combined AI detection. For students and freelancers, Copyleaks is often more practical since Turnitin only sells to institutions.

Is Copyleaks free or paid?

Copyleaks offers both free and paid options. The free tier provides limited scanning credits to test the platform. Paid plans start at $13.99/month for the Personal plan with 100 scan credits, and $74.99/month for the Pro plan with 1,000 credits. Enterprise and Education plans have custom pricing.

What do Copyleaks look for?

Copyleaks scans content for two main things: AI generated text and plagiarism. The AI detector identifies content created by tools like チャットGPT, Gemini, Claude, and other language models. The plagiarism checker compares your text against billions of web pages, academic papers, and documents to find matching content.

Can Copyleaks actually detect AI?

Yes, Copyleaks can detect AI generated content with high accuracy. The AI detection tool is trained to recognize human writing patterns and flags text when it detects deviations. Copyleaks supports AI detection in 30+ languages and covers GPT 3, 3.4 and 5, Gemini, Claude, plus newer models as they’re released.

How much does Copyleaks cost?

Copyleaks Personal plan costs $13.99/month with 100 scan credits for up to 25,000 words. The Pro plan costs $74.99/month with 1,000 credits for up to 250,000 words. Annual billing offers up to 25% savings. Enterprise and Education plans have custom pricing based on organization needs.

Is Copyleaks better than GPTZero?

Copyleaks and GPTZero each have strengths. GPTZero offers a more generous free tier making it better for casual users. Copyleaks provides higher accuracy rates, plagiarism checking combined with AI detection, and supports more languages. For professional use where accuracy matters most, Copyleaks has the edge.

How does Copyleaks work?

Copyleaks uses machine learning algorithms to analyze submitted text. For AI detection, it identifies patterns and signals specific to AI writing. For plagiarism, it compares content against a database of billions of sources. After submission, Copyleaks generates a detailed originality report highlighting matching content and AI probability scores.

Does Copyleaks detect Grammarly?

Using Grammarly for grammar corrections typically won’t trigger AI detection in Copyleaks. However, if you use Grammarly’s AI writing features to generate content rather than just correct it, that AI generated text may be flagged. Copyleaks is trained to detect AI writing patterns, not grammar correction tools.

Is there a free version of Copyleaks?

Yes, Copyleaks offers a free version with limited scanning capabilities. The free tier lets you test the AI detector and plagiarism checker with a small number of credits. For regular use, you’ll need to upgrade to a paid plan or purchase additional credits when your free allowance runs out.

How do I cancel my Copyleaks subscription?

To cancel your Copyleaks subscription, log into your account and go to settings. Navigate to subscription management and click cancel. All plans renew automatically unless canceled before the next billing cycle. Canceling stops future renewals but you’ll retain access until the end of your current billing period.

Does Copyleaks detect plagiarism?

Yes, plagiarism detection is one of Copyleaks’ core features. It scans your content against billions of online sources, academic databases, and previously submitted documents. The plagiarism checker supports 100+ languages and generates detailed reports showing matching content with source links.

Does Copyleaks have false positives?

Like all AI 検出器, Copyleaks can occasionally produce false positives where human writing is flagged as AI content. However, Copyleaks claims one of the lowest false positive rates in the industry at around 0.03% in certain tests. Using appropriate sensitivity settings helps minimize false positives for your specific use case.

Is Copyleaks AI reliable?

Copyleaks AI detection is considered highly reliable with a claimed 99% accuracy rate. The detector is regularly updated to recognize new AI models and writing patterns. However, no AI detector is perfect. Results should be viewed as indicators rather than definitive proof, especially for content that’s been heavily edited.

What is Copyleaks used for?

Copyleaks is used for detecting AI generated content, checking plagiarism, maintaining academic integrity, and protecting content originality. Students use it to verify their work before submission. Educators use it to check 学生 assignments. Content creators use it to ensure originality. Businesses use it to protect against copyright infringement.

Who owns Copyleaks?

Copyleaks was founded in 2015 as an AI text analysis platform. The company is privately held and has grown from a plagiarism detection service to a provider of AI detection and content integrity tools. Their suite is now trusted by millions of users across educational institutions and businesses worldwide.

Which is better, クイルボット or Copyleaks?

QuillBot and Copyleaks serve different purposes. QuillBot is a paraphrasing and writing tool that helps rewrite content. Copyleaks is a detection tool that identifies AI content and plagiarism. If you need to check content for originality, use Copyleaks. If you need to paraphrase or improve writing, QuillBotを使用する.

Can Copyleaks AI detect all AI writing?

Copyleaks can detect content from major AI models including GPT 3, 3.4 and 5, Gemini, Claude, and similar tools. However, heavily edited AI content or text that’s been extensively humanized may be harder to detect. Copyleaks regularly updates its models to catch newer AI writing patterns as technology evolves.