CoGrader

What it does

CoGrader grades student essays and short written responses against a rubric. Teachers import assignments from Google Classroom or upload PDFs, DOCX files, or photos of handwriting, then attach a rubric from the built-in library of state and AP standards or upload their own. The tool returns rubric-based scores, per-criterion comments, grammar suggestions, and originality checks for AI-generated text and plagiarism.

The rubric generator, grader, and LMS sync sit in one workflow, so a rubric created in the tool can be applied directly to imported assignments, with scores and feedback pushed back to the gradebook. Class-level analytics show common growth areas and performance by rubric criterion. Teachers review and adjust every score and comment before students see it.

It suits K-12 teachers and districts assessing writing. Teachers can start with a free Starter plan of 150 submissions per month. Canvas and Schoology integrations and purchase orders apply only to school or district plans. The site states that no AI-detection tool guarantees accuracy and that teachers remain responsible for final grades.

What it can do

• Rubric-based AI scoring of essays and written responses with per-criterion feedback
• AI rubric generator with state and AP standards templates plus custom rubric upload
• Grammar checking and suggestions within student submissions
• AI-detection and plagiarism indicators for originality review
• Class performance analytics showing common growth areas and criterion averages
• Handwritten work support by reading uploaded photos or scans and sorting pages by student

Works with

• Google Classroom
• Canvas
• Schoology
• Brightspace
• Blackboard
• Microsoft Teams
• Moodle

Before you choose

• Canvas and Schoology integrations require school or district plans, so individual teachers on the free tier should expect file-based import and export.
• Teachers remain responsible for final grades and feedback; the vendor states the tool is an aid rather than a replacement for professional judgment.
• AI-detection results are indicators only and the site states no tool guarantees 100% accuracy.

Listed under

• Productivity
• Writing and docs
• Essay grading
• Handwritten grading
• K-12 schools
• Lms integration
• Rubric grading
• Teachers

Get started

Starter plan requires account creation; no credit card is required per the homepage FAQ.

1. Create a teacher account through the sign-up page.
2. Import assignments from Google Classroom, or upload PDFs, DOCX files, or handwriting photos.
3. Select or create a rubric, then run grading and review each score and comment before finalizing.

Starter is free for teachers up to 150 submissions per month. Individual plan is $15/month billed annually or $19/month. School, district, and enterprise plans use custom quotes; purchase orders are accepted only for institutional plans.

Source: cograder.com/pricing, checked 30 Oct 2026. Prices can change; check before you buy.

Sources for this overview

Product pages, documentation, and pricing checked 30 Oct 2026. Each source supports part of the overview; availability and prices can change.

• The AI Grader & AI Essay Grader for Schools. Free for Teachers ↗cograder.com
• Free AI Rubric Generator for Teachers | CoGrader ↗cograder.com
• Affordable AI Grading Plans for Teachers | CoGrader ↗cograder.com
• Originality Checker — AI Detection & Plagiarism | CoGrader ↗cograder.com
• Assessment Platform | CoGrader ↗cograder.com
• The AI Grader & AI Essay Grader for Schools. Free for Teachers ↗cograder.com

Company website

cograder.com: product, pricing and policy pages

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Last checked 30 Oct 2026. Every field keeps its source and date; unknown means we couldn’t confirm it.