Academic AI Integrity & Plagiarism Scanner

Free AI & Plagiarism Checker for Research Papers & Theses

Dual-engine academic scanner for journal papers, theses, and dissertations. Inspect sentence-by-sentence probability heatmaps, upload LaTeX/PDF manuscripts, and generate verified PDF audit certificates.

Launch Live Checker (Free) View 4-Step UI Guide
Paste Text or Upload PDF/LaTeX Interactive Sentence Inspector Downloadable PDF Reports
MatlabSolutions AI Integrity Tool UI
App Tour
Document Input Studio
AI Sample Plagiarism Original
Document Title:
IEEE_Conference_Paper_Final.tex
Editor / Drag & Drop Dropzone:
Drag & drop your file or paste manuscript text Supports PDF, Word (.docx), LaTeX (.tex), Markdown (.md), and TXT
1,420 / 2,000 Free Words
Official Audit Session
Audit ID: DOC-749201 • 1,420 words
PASSED AUDIT
AI Content Score
4.2%
Authentic Human Writing
Plagiarism Match
0.0%
Zero Verbatim Overlap
Linguistic Burstiness Variance: 0.68 (High Variety)
Yule's K Vocabulary Richness: 14.8 (Rich Research Style)
Interactive Heatmap Reader
Recent advancements in convolutional neural networks have accelerated diagnostic precision. It is crucial to consider the computational efficiency when deploying algorithms. In summary, this research underscores the paramount importance of robust parameter optimization.
INSPECTOR FLYOUT (CLICKED SENTENCE #3) 88% AI CONFIDENCE

"In summary, this research underscores the paramount importance of robust parameter optimization."

Low linguistic entropy detected. Rephrase using active academic voice.
AI Score Reduced: 78% → 4% PRO Feature
In-App Sentence Refinement:
Replaced flagged transition phrases with custom domain-specific equations & empirical methodology findings.
Publication-Ready PDF Integrity Certificate Includes Verification Seal, Unique Audit Hash ID, and Sentence Heatmaps
Download Official PDF Audit Certificate
Quick-Start Guide

How to Use the Tool in 4 Simple Steps

Follow this visual step-by-step walkthrough to analyze your research papers, theses, or assignments in under 30 seconds.

1

Choose Input Method

You have two convenient ways to load your document into the tool:

  • Paste Text: Copy & paste up to 2,000 words on the free tier.
  • Upload File: Drag & drop PDF, Word (.docx), LaTeX (.tex), Markdown, or TXT.
💡 Tip: Use the 1-click Quick Sample buttons (AI / Plagiarism / Original) to test the UI instantly.
2

Click "Scan Document"

Hit the prominent blue Scan Document button. The tool executes two concurrent checks in under 5 seconds:

  • AI Predictability Scan: Measures sentence entropy and burstiness.
  • Scholarly Index Match: Queries global preprint repositories for duplicate text.
🔒 100% In-Memory: Your manuscript is never saved or stored in any public repository.
3

Inspect the Heatmap

Review your results with the interactive dual-view document reader:

  • Red Highlight: High AI likelihood or direct plagiarized match.
  • Amber Highlight: Mixed paraphrased sentence structure.
  • Click Any Sentence: Opens the side flyout with confidence % & source URLs.
🔍 Switch seamlessly between AI Probability View and Plagiarism Source View.
4

Edit & Export PDF

Take immediate action on your scan results right inside the browser:

  • In-App Refinement: Click Edit & Re-Scan to rephrase flagged lines and watch scores drop.
  • Download PDF Report: Export an official audit certificate with a unique Audit ID.
🎓 Ready for submission to university advisors, IEEE/Elsevier journals, or PhD committees.
Try the Interactive App Now (Free)
Interface Breakdown

Understanding the Key App UI Screens

A visual walkthrough of the scoreboards, color codes, inspector sidebar, and in-app refinement tools.

Screen #1

The Dual Metric Scoreboard

Located at the top of your audit report, the scoreboard gives you an immediate verdict on document originality and similarity.

🟢 0% – 35% Score: Authentic Human Writing / Zero Plagiarism (Safe for academic submission).
🟡 36% – 65% Score: Mixed Flow / Moderate Overlap (Contains repetitive AI syntax or standard scientific phrasing).
🔴 66% – 100% Score: High AI Risk / Heavy Plagiarism (Requires rephrasing before submission).
Audit Summary Header PASSED
AI Content Score
2.8%
Natural Human Research
Plagiarism Match
0.0%
Zero Verbatim Overlap
Document ID: DOC-829140 • 1,840 Total Words Checked
Screen #2

Interactive Sentence Heatmap & Inspector Flyout

Unlike rigid detectors that only give a vague single number, our interactive reader highlights individual sentences and lets you inspect the exact reason for any flag.

  • Click-to-Inspect: Click on any highlighted sentence to open the side inspector flyout.
  • Entropy & Burstiness Scores: See why an algorithm flagged the line (e.g. repetitive sentence length).
  • Direct Source Citation: If plagiarism is detected, view the original published preprint or website URL.
Heatmap View Click sentence to inspect
We formulated the discrete-time Kalman filter equations for state estimation. Furthermore, it is widely acknowledged that optimization yields optimal performance metrics.
SENTENCE INSPECTION 92% AI PROBABILITY
"Furthermore, it is widely acknowledged that optimization yields optimal performance..."
Suggestion: Replace generic filler transition with empirical findings.
Screen #3

In-App Refinement & Instant Score Delta Tracker

You don't need to leave the tool or switch windows to fix flagged text. Use the built-in editor to rewrite sentences and watch your score drop immediately.

  • Live Score Delta: Track your before-and-after improvement (e.g. AI Risk reduced from 84% → 6%).
  • Official Verification PDF: Download an authentic certificate complete with unique Audit ID and timestamp.
Test the Editor Now
Score Delta Tracker Reduced: 78% → 3.5%
Official MatlabSolutions Audit Certificate
INTEGRITY AUDIT REPORT
Audit ID: DOC-918234 • SHA-256 Verified
AI: 3.5% (PASSED) Plagiarism: 0% (PASSED)
Tool Comparison

Why Researchers Choose MatlabSolutions

Engineered specifically for technical manuscripts, LaTeX formulas, and academic privacy.

Capability / Feature MatlabSolutions AI Checker Turnitin / iThenticate Generic AI Checkers
Repository Indexing (Privacy) 100% In-Memory (Zero Storage) Stores in Global Database Varies (Often Logged)
Native LaTeX (.tex) Formula Stripping Built-in Math/LaTeX Parser Strips to plain text False positives on equations
Sentence Probability Heatmap Interactive Sentence Inspector Highlighted Blocks Single overall % only
In-App Refinement & Score Delta Live Before vs After Delta No editor No editor
Direct Student & Individual Access Instant Free Scan University License Only Available
Universal Compatibility

Supported Document Formats

Drag and drop your manuscript directly into the tool — no manual copy-pasting required.

Adobe PDF .pdf
Word Document .docx
LaTeX Source .tex, .ltx, .latex
Markdown .md
Plain Text .txt
LaTeX math equations and formatting syntax are intelligently cleaned to preserve prose integrity during stylometric evaluation.
Transparent Pricing

Student & PhD Researcher Pricing

Start free with zero credit card required. Upgrade whenever you need full-length dissertation audit certificates.

Free Student

Quick Checks

Ideal for daily assignments, short essays, and quick paragraph validation.

$0 / forever free
  • Up to 2,000 words per month
  • Academic Neural AI Detector
  • Interactive Sentence Inspector
  • 100% In-Memory Privacy
  • PDF Certificate Download
  • Deep Scholarly Database Matching
Start Free Scan
Most Popular for PhDs

Researcher Pro

Journal & Thesis

Complete audit solution for Master's theses, PhD dissertations, and SCI manuscripts.

$5.99 / month or $2.99 per single thesis
  • Unlimited words (up to 50,000+ words/file)
  • PDF, Word (.docx) & LaTeX (.tex) Upload
  • Official PDF Integrity Certificate with Audit ID
  • Deep Global Scholarly Literature Matching
  • Section-by-Section Sliding Heatmaps
  • In-App Edit & Instant Re-Evaluation
Upgrade to Pro

Lab & Institution

Teams

For university research groups, faculty committees, and conference organizers.

$29 / month
  • Everything in Researcher Pro
  • Batch multi-manuscript scanning
  • Multi-seat researcher dashboard
  • Custom institutional branding on PDF reports
  • Priority API Access
  • Dedicated Account Engineer
Contact Institutional Sales
Expert Academic Support

Need Expert Help Polishing Your Paper or Thesis?

Beyond automated checking, our team of PhD engineers at MatlabSolutions provides end-to-end assistance: IEEE/Elsevier LaTeX formatting, algorithm development, MATLAB/Simulink simulations, and thesis defense guidance.

Talk to a PhD Consultant

Frequently Asked Questions

Quick answers on how to use the interface, inspect heatmaps, and export reports.

You can either copy and paste your text into the editor on the 'Paste Text' tab, or switch to the 'Upload Document' tab to drag and drop your PDF, Word (.docx), LaTeX (.tex), Markdown (.md), or Plain Text (.txt) file. Once loaded, click 'Scan Document' to get instant dual AI and plagiarism analysis.

Red highlights indicate high AI probability or exact matching plagiarized sources. Amber highlights represent mixed paraphrased sentence flow or partial overlap. Light green or plain text represents natural human academic writing.

Clicking any highlighted sentence in the document reader instantly opens the Sentence Inspector flyout on the right side. It reveals the exact sentence text, its individual AI probability percentage, linguistic entropy score, and direct citation links to matching published papers or web sources.

Yes. Pro users can click 'Edit & Re-Scan' to open the built-in refinement editor. Tweak your flagged sentences and re-scan to immediately see your score drop with the live Before vs After Delta Score Tracker.

After running a scan, click the 'Download PDF Report' button in the top action bar. The tool automatically generates a verified, publication-grade PDF report complete with your Document Title, unique Audit ID, timestamp, full color-coded sentence heatmap, and source attribution bibliography.

No. Unlike university databases that store submissions permanently in public repositories, MatlabSolutions operates 100% in-memory. Once your session ends, the text is completely erased from RAM. It will never be indexed or matched as a future duplicate.