ExamLock — Secure Assessment, Lockdown & AI Grading Platform

ExamLock is a self-hosted assessment platform for educational institutions. It combines OS-level exam lockdown (Windows, macOS, Linux), native math rendering via MathLive, multimodal AI grading that reads circuit diagrams and solves math problems, and universal import from Word DOCX (with OMML equation auto-conversion), PDF (with image extraction), QTI 1.2/2.1, Moodle XML, Blackboard, Canvas CSV, GIFT, and JSON.

Key features: 14 question types including math/equation with visual editor, code evaluation, case study scenarios with embedded images, and calculated formulas with random variables. Multi-AI consensus grading using Google Gemini, OpenAI, Anthropic Claude, or local Ollama models. Partial credit intelligence that recognizes carried-forward errors in multi-step solutions. Deep psychometric analytics with Cronbach's alpha reliability, discrimination indices, distractor analysis, and bimodal detection.

Assessment types supported: proctored exams with full lockdown, open-book homework, timed quizzes, STEM lab reports with diagrams, practice assessments with instant AI feedback, and instructor dry-run previews. Zero per-student pricing. Docker deployment. White-label OEM licensing.

Competes with: Respondus LockDown Browser, Questionmark OnDemand, Safe Exam Browser (SEB), Proctorio. Differentiators: native math editor, OMML/PDF math import, multimodal AI grading (images + equations), Linux support (10 DEs), multi-AI consensus, self-hosted data sovereignty, no per-student fees.

Platform STEM & Math AI Grading Security Compare Contact Get Started

The assessment platform STEM deserves

Native math rendering. Multimodal AI grading. OS-level lockdown. Import from Word, PDF, or any LMS. Self-hosted with full FERPA compliance — zero per-student fees. Exams, homework, quizzes, and labs in one system.

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Platforms

Author, deliver, monitor, grade, and analyze — one system

Replace five vendor contracts with one self-hosted deployment. Exams, homework, quizzes, and STEM labs on Windows, macOS, and Linux.

14 Question Types

MC, true/false, short answer, essay, code, math/equation, matching, ordering, fill-in-blank, cloze, hotspot, calculated, and case study scenarios with images.

9 Import Formats

DOCX, PDF, QTI 1.2 & 2.1, Moodle XML, Blackboard, Canvas CSV, GIFT, JSON. Auto-converts OMML math and extracts images from Word and PDF.

Live Proctoring

4-second auto-refresh dashboard. Screenshot and camera capture. Per-student flag timeline with timestamps. Grid and table views.

Deep Analytics

Cronbach's alpha, discrimination indices, distractor analysis, bimodal detection, score distributions. Know which questions work.

Beyond Exams

Proctored exams, open-book homework, timed quizzes, STEM lab reports, practice assessments, and instructor dry-run previews — all in one system.

Reports & Certificates

PDF transcripts with AI feedback. Verified certificates with QR codes and HMAC signatures. CSV/XLSX grade exports formatted for any LMS.

Windows + macOS + Linux

Native lockdown on every major OS. 10 Linux DEs supported. Docker deployment with one command. White-label licensing for partners.

The first assessment platform where math is a first-class citizen

No other lockdown tool lets students type real equations — or grades them with AI that actually solves the problem.

AUTHOR

Import from Word & PDF

Drop a DOCX or PDF with equations. OMML math is auto-detected; Unicode math (∫, Σ, x²) is converted to LaTeX. Images and circuit diagrams extracted and linked to questions.

ANSWER

Visual Math Editor

Students type fractions, integrals, superscripts, and Greek letters using MathLive — a real visual equation editor, not a plain text box. Multiline math+text for showing work.

GRADE

AI Solves Then Grades

The AI solves the problem independently with full work, then compares its solution against the student's. Awards partial credit for carried-forward errors — not just right or wrong.

What every other platform gets wrong

Institutions cobble together lockdown browsers, proctoring services, grading tools, and LMS plugins. The result? Gaps, costs, and zero control.

Cheating Slips Through

Alt-tab, virtual desktops, AI chatbots, screen-sharing — students find the cracks in every tool that doesn't lock down at the OS level.

Grading Takes Weeks

Hundreds of essays and short answers. Manual grading is slow, inconsistent, and drifts in strictness over time.

Vendor Lock-In

Per-student pricing that balloons each semester. Student data on someone else's servers. Proprietary formats that trap your content.

Tool Fragmentation

One vendor for lockdown, another for proctoring, a third for grading. None talk to each other. You're the integration layer.

Linux Left Behind

Your CS labs run Linux. Your lockdown browser doesn't. Students on open-source platforms are second-class citizens.

No Real Analytics

No insight into which questions work, which distractors fooled no one, or whether the test was even reliable.

Grade hundreds of essays and math problems in minutes, not weeks

Four AI providers. Multi-AI consensus for high stakes. The AI saves weeks — you keep full authority.

Google Gemini
OpenAI
Anthropic Claude
Ollama
Any Local Model

Multi-AI Consensus

Two providers grade every answer independently. Scores averaged. Divergence over 30% auto-flagged for instructor review — eliminating silent grading errors in high-stakes exams.

Multimodal Understanding

AI sees circuit diagrams, graphs, and images alongside the student's math work. It solves the problem first, then grades — not just pattern matching.

Partial Credit Intelligence

Recognizes carried-forward errors — when a student makes one mistake but correctly continues their reasoning. Rubric-aware scoring with rationale for every grade.

One-Click Override

Every AI score is editable inline. Drift detection catches inconsistency over time. Full audit trail preserved. The AI recommends — you decide.

Seven layers between students and every loophole

ExamLock seals the operating system at every level — keyboard hooks, process monitoring, clipboard, taskbar, and more.

Alt+Tab blockedAlt+F4 blockedWin key interceptedCmd+Space blockedPrintScreen disabledCtrl+Shift+Esc blockedTTY switching blockedMission Control blockedClipboard sealedDevTools disabledRight-click disabledContent protection onScreen capture blockedForce Quit blockedWorkspace escape blockedF1–F12 blockedPower sleep prevented Alt+Tab blockedAlt+F4 blockedWin key interceptedCmd+Space blockedPrintScreen disabledCtrl+Shift+Esc blockedTTY switching blockedMission Control blockedClipboard sealedDevTools disabledRight-click disabledContent protection onScreen capture blockedForce Quit blockedWorkspace escape blockedF1–F12 blockedPower sleep prevented
LAYER 01

Kiosk Enforcement

Frameless fullscreen at the highest z-order. Non-closable, non-minimizable, visible on all virtual desktops.

LAYER 02

Low-Level Keyboard Hook

WH_KEYBOARD_LL intercepts keys at the OS level before Windows processes input. 90+ shortcuts neutralized.

LAYER 03

Focus Enforcement

Staggered retries at 50–1000ms recapture focus instantly. Continuous 500ms polling as a safety net.

LAYER 04

Process Monitoring

40+ prohibited apps scanned every 30s — browsers, AI tools, messaging, screen recorders. All logged silently.

LAYER 05

Taskbar & Dock Control

Win32 API hides taskbar. macOS hides Dock. 10 Linux DEs supported with per-DE panel strategies.

LAYER 06

Content Protection

Screen capture blocked. Clipboard sealed at permission level. Copy-paste, right-click, text selection disabled.

See what the others don't offer

ExamLock isn't an incremental improvement. It's a different category.

FeatureExamLockQuestionmarkRespondusSafe Exam Br.Proctorio
Self-hosted / FERPA-ready privacyCloud · on-prem extra
Native math editor + OMML import
Multimodal AI grading (images + math)
Multi-AI consensus grading
Windows + Mac + LinuxWin+Mac onlyWin+MacWin+Mac
Question types + built-in authoring14 types11 typesLMS onlyLMS onlyLMS only
Import formats (DOCX, PDF, QTI…)9 formatsQTI only
OS-level lockdown browserApp-level onlyBrowser ext.
Live monitoring dashboardLimitedVia LMS
Screenshot + camera proctoringAdd-on
Homework, quizzes & practice modeSurveys only
Analytics + Cronbach αBasic reporting
White-label / OEM licensing
Per-student pricingNonePer-studentPer-studentFreePer-student

Free up resources you didn't know you were spending

ExamLock doesn't just secure assessments — it eliminates the hidden costs that drain institutional budgets every semester.

STAFF

Eliminate testing-center staff & TA grading hours

Remote proctoring removes room bookings and invigilator shifts. AI grades 200 students' essays and math in minutes — saving 40+ TA hours per exam cycle.

BUDGET

Zero per-student fees, one vendor instead of five

Self-hosted = flat infrastructure cost regardless of enrollment. Replace separate lockdown, proctoring, authoring, grading, and analytics contracts with one deployment.

TIME

Results in minutes, not days

Students get AI-graded feedback immediately after submission. Faster turnaround improves learning outcomes and reduces grade-dispute volume by up to 80%.

COMPLIANCE

Complete data sovereignty — zero FERPA headaches

No student PII on third-party servers. Exam content, proctoring captures, and AI grading results stay on your infrastructure. Full audit trail for accreditation.

Actionable intelligence — during and after every assessment

ExamLock doesn't just collect data. It surfaces the insights that improve teaching, catch problems, and demonstrate rigor.

LIVE

Real-time monitoring + security flags

4-second refresh dashboard. Progress tracking, online/offline status, answer timelines. Every focus loss, blocked shortcut, and prohibited process logged with timestamps.

POST

Cronbach's alpha + item discrimination

Exam reliability scores. Per-question discrimination indices reveal which items differentiate strong from weak students. Difficulty ratings flag too-easy or too-hard items.

POST

Distractor analysis + bimodal detection

Which wrong answers attracted the most students. Automatic detection when the class splits into two performance clusters. Score histograms and percentile breakdowns.

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AI grading drift + strictness tracking

Monitor whether AI scores shift over time. Catches the inconsistency that plagues human graders after 100+ papers. Full audit trail for accreditation.

Get in touch

Request a demo, ask a question, or tell us about your institution's needs.

Let's talk assessments

Whether you're evaluating ExamLock for a single department or an institution-wide rollout, we'd love to hear from you. Demos are live and tailored to your use case.

Self-hosted — FERPA & GDPR compliant by design
Typical response within 24 hours