Last updated 07-02-2026
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GradeLab
GradeLab is an assessment platform built for schools, universities, coaching centers, and government exam bodies that need to grade handwritten and digital exams faster without giving up teacher control. Upload scanned answer sheets or run online tests, and the system applies your rubrics to score essays, math, diagrams, and mixed-format papers while flagging anything that needs a human review.
What sets it apart is the focus on real exam workflows: OCR trained on student handwriting across 30+ languages, on-screen marking for distributed examiners, question generation from PDFs, LaTeX exam paper formatting, and REST APIs for LMS and EdTech integrations. Institutions can deploy on-premise so exam data stays inside their network.
GradeLab targets K-12 schools, higher-ed departments, test-prep centers, corporate training teams, and public-sector assessment programs that process large paper volumes and want consistent grading with analytics parents and administrators can actually read.
Grade 200 handwritten exams in under 30 minutes with 99%+ OCR accuracy
Handles essays, math, diagrams, and MCQs across 30+ languages including Arabic and Chinese
Teachers override any AI score with one click and add comments before release
Generate MCQs, short answers, and essay prompts from uploaded PDFs or text
Build LaTeX-formatted exam papers with complex math notation and export to PDF
REST API grades up to 500 submissions per batch with webhooks and sandbox keys
On-premise deployment keeps exam data inside your institution with zero cloud dependency
Covers both handwritten scans and fully digital exams in one platform.
Teachers retain final control with review, override, and moderation workflows.
REST API and LMS integrations suit universities and EdTech platforms building custom flows.
On-premise and VPC deployment options address data residency for institutions.
Pricing page cites up to 80% grading cost reduction for universities running large volumes.
Public pricing is not listed; Pay-As-You-Go and Enterprise both require booking a demo or contacting sales.
Many advanced features (proctoring, webhooks, SSO, white-labeling) are paid add-ons on lower tiers.
Low public web footprint (DR ~5) despite claims of 1,000+ institutional users on the marketing site.
Does GradeLab grade handwritten exam papers?
Yes. GradeLab uses OCR trained on diverse student handwriting to read scanned or photographed answer sheets. If text is illegible, the system flags that section for teacher review rather than guessing a score.
Can teachers override grades from GradeLab?
Yes. GradeLab is designed to assist educators, not replace them. Teachers can review AI suggestions, adjust scores with a marking slider, add comments, and finalize grades before students or parents see results.
Does GradeLab integrate with Canvas, Moodle, or Blackboard?
Yes. GradeLab offers LMS integration with Canvas, Moodle, Google Classroom, and Blackboard. Grades and rosters can sync automatically, and results can be pushed via the REST API without manual exports.
How does GradeLab pricing work?
GradeLab offers a Pay-As-You-Go plan billed per paper and an Enterprise plan with custom pricing for large institutions. Public dollar amounts are not listed on the pricing page; demos are booked through the site, and enterprise buyers contact sales.
Is there a free trial for GradeLab?
GradeLab promotes a 90-day trial with free migration and locked-in 2026 pricing when you book a demo through the pricing page. Individual product pages also mention trying the paper grader without a credit card.
Does GradeLab offer an API for developers?
Yes. GradeLab provides REST endpoints for grading, OCR, and question generation at api.gradelab.io, with documentation at docs.gradelab.io. Sandbox and production API keys are available, and batch calls accept up to 500 submissions with webhook delivery.