VibeGrade

VibeGrade is an AI essay grading agent for teachers that runs as a Chrome extension inside Google Docs and common LMS platforms to speed up grading and feedback.

Key capabilities include:

• 1-click grading in existing workflows, with support for Google Docs, Google Classroom, Canvas, Toddle, and other platforms (no separate file uploads required)
• Rubric-based grade estimates and breakdowns, including per-criterion justifications aligned to the teacher’s rubric
• Smart annotations and real-time feedback, highlighting strengths and areas for improvement directly in the student text
• Academic integrity tools, including plagiarism checking, citation support, AI writing detection (powered by Pangram), and playback writing to review the student’s writing process

Pricing: Freemium, Chrome extension available “for free” with no credit card required; the site also references $10/month pricing.

Notable for embedding grading directly into Google Docs and LMS tools via a browser extension, combining rubric-driven scoring with plagiarism checks, AI writing detection, and writing-process review in one place.