Google Classroom IntegrationAcademic integrity, built into Google Classroom
Checkmark helps educators uphold fairness in the classroom with plagiarism detection, AI writing analysis, and unbiased autograding — all built into Google Classroom.
What Checkmark Offers
Everything you need for academic integrity
Four powerful tools, one seamless add-on — all built for Google Classroom.
Plagiarism Detection
Cross-reference student submissions against billions of web pages, academic papers, and previously submitted work. Detailed similarity reports highlight every source.
15B+ sources checkedAI Writing Detection
Detect AI-generated content from ChatGPT, Claude, Gemini, and more. Sentence-level highlighting shows exactly which passages were flagged.
99.2% accuracyAutograding
Set rubrics and let Checkmark provide instant, unbiased feedback on student writing. Save hours per assignment while maintaining grading quality.
80% time savedGoogle Classroom Add-on
Install once as a Google Classroom add-on. Submissions are automatically scanned and results appear alongside student work — zero context-switching.
Seamless integration
How It Works
Up and running in minutes
Install the Add-on
Your Google Workspace admin installs Checkmark from the Google Workspace Marketplace. Takes less than 2 minutes.
Students Submit as Usual
Nothing changes for students — they submit assignments through Google Classroom exactly as they always do.
Automatic Scanning
Checkmark instantly checks every submission for plagiarism, AI-generated content, and rubric alignment.
View Results Inline
See detailed reports, similarity scores, and AI flags right alongside student work in Google Classroom.
Trusted by Educators
"We switched from manual plagiarism checks to Checkmark in Google Classroom and it's been transformational. Our teachers save hours every week and students get faster feedback."
Maria Johnson
Technology Coordinator, Westfield School District
Used by schools and districts across the country
Ready to bring fairness to every assignment?
Join thousands of educators using Checkmark in Google Classroom. Start your free pilot today — no credit card, no commitment.