Checkmark Plagiarism Logo
Checkmark Plagiarism

AI & Plagiarism Detection
with Autograding

Checkmark

Designed By Teachers,
For Teachers

How It Works

Teachers can tell when students are copying, just by replaying their typing patterns and copy-pastes via Essay Playback™.

Authentic Writing

Authentic Writing Example

Copied Writing

Copied Writing Example

Our report detects these typing patterns and more...

Powered by patent-pending keystroke analysis

Click around the interactive report below

Our Tools

Designed with teachers to support student writing and save teachers time

Keystroke Analysis

Verify authentic writing patterns

Keystroke Analysis

Our patent-pending keystroke analysis tracks typing speed and patterns to verify authentic writing. Like watching a student write in real-time, this helps identify when work matches their natural writing pace.

Copy Paste Detection

Catch copied content instantly

Copy Paste Detection

Identifies when text is pasted rather than typed. Shows exactly where students copied content, helping you spot plagiarism before grading.

Uncited Text

Normal plagiarism detection

Uncited Text

Traditional plagiarism detection that finds text matching online sources. Highlights uncited passages and shows the original sources students forgot to cite.

AI Detection

Identify AI-generated writing

AI Detection

Identifies AI-generated text by analyzing writing patterns. We look at how consistent the writing style is, unusual word choices, and sentence flow—similar to how you'd notice when an essay doesn't sound like your student's usual voice.

Essay Playback™

Review the writing process

Essay Playback™

Watch a video replay showing how the essay was written, including every pause, deletion, and edit. It's like having a time machine to review the entire writing process and verify flagged scores.

Autograder

Grade with your rubric automatically

Autograder

Automatically grades assignments based on your custom rubric. Provides clear explanations for every point awarded or deducted, maintaining consistency across all submissions.

Writing Feedback

Help students improve their writing

Writing Feedback

Generates specific, actionable feedback like a writing tutor. Helps students improve their grammar, structure, and clarity with personalized suggestions.

No External Download

Deploy once, works everywhere

No External Download

Works seamlessly inside Canvas and Google Classroom. Your school IT deploys it once, and students use it immediately—no downloads, installations, or separate accounts needed.

Integrate With Your LMS

Add cutting-edge plagiarism detection and autograding directly into your existing workflow

Google Classroom Logo

Google Classroom

Canvas LMS Logo

Canvas

Don't see your platform? Contact us for custom integration options!

The Most Comprehensive Solution

Compare Checkmark Plagiarism with other leading AI detection tools

Overall Accuracy Comparison

91%

GPTZero

89%

Turnitin

95%
Checkmark

Checkmark Plagiarism

A 6% improvement in accuracy can decrease false accusations by approximately 300 submissions per year per 1,000 students

Feature Comparison

FeatureTurnitinGPTZeroGrammarly
CheckmarkCheckmark Plagiarism
Web-Based Plagiarism Detection
Limited
AI Detection
Keystroke Analysis
Limited
Patent Pending
Copy/Paste Detection
Limited
Limited
Limited
Essay Playback™
Limited
Limited
Limited
Autograding
Limited
Writing Feedback

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