Plagiarism Checker

Tool Introduction

The Plagiarism Checker is a text originality detection tool powered by third-party API services. By inputting text content, the system automatically analyzes and detects potential duplicate content, providing users with plagiarism percentage and detailed source matching information.

The tool supports detection in multiple languages, including Chinese, English, and 14 other common languages. It can automatically identify text language or allow manual language selection. Detection results are presented through intuitive donut charts and detailed lists, helping users quickly understand their text's originality status.

Usage Steps

Step 1: Enter Text

• Paste the content you want to check in the text input area
• Supports up to 1000 characters (for character-based languages like Chinese) or 1000 words (for word-based languages like English)
• The system displays real-time character/word count and limits

Step 2: Select Language

• Choose "Auto Detect" to let the system automatically identify text language
• Or manually select a specific language: Simplified Chinese, English, Japanese, Korean, French, German, Spanish, and 13 other languages
• Different languages use different character counting methods

Step 3: Start Detection

• Click the "Check Plagiarism" button to initiate the detection process
• The system will show "Processing..." status with loading animation
• Detection typically takes a few seconds to several tens of seconds

Step 4: View Results

• Check the donut chart showing plagiarism percentage
• Browse the list of matching sources and detailed information
• Observe red-highlighted duplicate sections in the text
• Use the "Reset" button to clear all content and start over

Result Interpretation

Plagiarism Rate Levels

• 0-15%: Low similarity rate, displayed in green
• 16-30%: Medium similarity rate, displayed in yellow
• 31% and above: High similarity rate, displayed in red

Visual Display

• Donut Chart: Intuitively displays overall plagiarism rate as a percentage
• Text Highlighting: Duplicate content marked with red background
• Source List: Shows detailed information of detected matching sources

Match Information Interpretation

• Source Title: Shows the source website or document title of matching content
• Match Position: Shows the specific position range in the original text
• Match Text: Displays specific duplicate content fragments
• Similarity Score: Numerical similarity value for individual matches

Feature Highlights

📝 Simple and Easy to Use

• Clean and intuitive interface with no complex configuration needed
• Real-time character/word counting to avoid exceeding limits
• One-click detection for quick results

🌍 Multi-language Support

• Supports detection in 16 mainstream languages
• Automatic language recognition feature
• Optimized counting methods for different languages

🎯 Precise Annotation

• Accurately marks the location of duplicate content
• Provides specific fragments of matching text
• Shows detailed information for each match

📊 Visual Results

• Donut chart for intuitive plagiarism rate display
• Color-coded risk level indicators
• Clear source information presentation

🔄 Convenient Operations

• Reset function for quickly clearing content
• Real-time feedback on detection status
• Language switching automatically resets content

Use Cases

Academic Writing

• Check originality of academic papers
• Verify uniqueness of research reports
• Ensure proper citation formatting

Content Creation

• Verify originality of articles
• Check blog content for duplication
• Ensure marketing copy uniqueness

Educational Assessment

• Check student assignments for plagiarism
• Verify originality of course materials
• Support academic integrity education

Professional Writing

• Ensure business document originality
• Check technical documentation for duplication
• Verify legal document uniqueness

Frequently Asked Questions

Q1: Why is there a character/word limit?

A: The tool limits each detection to a maximum of 1000 characters (Chinese) or 1000 words (English) to:

• Ensure detection speed and accuracy
• Avoid server overload
• Provide better user experience

Q2: How to choose the appropriate language?

A: Recommendations:

• Single-language text: Select the corresponding specific language
• Mixed-language text: Choose "Auto Detect"
• When uncertain: Use the "Auto Detect" feature

Q3: What plagiarism rate is considered normal?

A: General reference standards:

• Below 15%: Usually considered acceptable plagiarism rate
• 15-30%: Requires attention, recommend checking citation format
• Above 30%: High plagiarism rate, content modification recommended

Q4: What if the detection results are inaccurate?

A: Possible causes and solutions:

• Common word repetition: Normal phenomenon
• Technical term repetition: Common in industry contexts
• Formatted content: Such as titles, formulas, etc., are normal

Q5: What languages can be detected?

A: Currently supports:

• Chinese: Simplified Chinese, Traditional Chinese
• European languages: English, French, German, Spanish, Italian, Portuguese, Russian
• Asian languages: Japanese, Korean, Thai, Vietnamese, Hindi, Arabic

Q6: How fast is the detection?

A: Detection time factors:

• Text length: Longer texts take more time
• Network conditions: Affects API call speed
• Generally completed within seconds to tens of seconds

Tips and Reminders

💡 Usage Suggestions

• Reasonable Segmentation: For long texts, suggest segment-by-segment detection for better accuracy
• Timely Detection: Regular detection during writing process to identify issues early
• Language Matching: Choose correct language type for more accurate results
• Reference Results: Use detection results as reference, combine with manual judgment

⚠️ Important Notes

• Tool relies on third-party API services, network conditions may affect detection
• Technical terms and industry-standard expressions repetition is normal
• Detection results are for reference only, final judgment should consider specific circumstances
• When exceeding character/word limits, segmented processing is required

🔧 Technical Information

• Tool uses online API detection, no local installation required
• Real-time status and progress display during detection
• Reset function available for clearing and starting over anytime
• Compatible with modern browsers, supports mobile access

📋 Operation Guide

• Input area supports direct text pasting
• Real-time character/word count display in bottom right corner
• Input box turns red when limit is exceeded
• Detailed match information and source links available after detection completion