Plagiarism Checker: Check Your Paper with University-Grade Software
Our plagiarism checker uses PlagAware, the professional detection engine trusted by universities, to search 70+ billion sources and generate a detailed, color coded PDF report delivered to your email in 15 minutes.
What Is a Plagiarism Checker?
A plagiarism checker is software that compares submitted text against a database of sources to identify matching or substantially similar passages. Academic plagiarism checkers, such as PlagAware? Which powers this service, search billions of sources including academic journals, university theses, websites, and previously submitted student papers. Matches are reported as a similarity percentage and highlighted at the passage level, enabling authors to locate and address each issue.
Plagiarism checkers detect three types of text reuse: direct copying (word for word reproduction), paraphrase plagiarism (same ideas, different wording), and self plagiarism (reuse of one's own previously submitted work). Detection quality depends primarily on database coverage, a tool that only searches public websites misses the majority of academic sources. PlagAware checks against 70+ billion sources, including the same academic content indexed by institutional Turnitin deployments.
How the Plagiarism Checker Works
Three simple steps, and your plagiarism report is in your inbox within 15 minutes.
Upload Your Paper
Upload your document as PDF, DOCX, DOC, or TXT (max. 50 MB). We calculate the number of standard pages automatically from your file's character count.
Plagiarism Check Runs
PlagAware scans your text against 70+ billion online and academic sources. Every sentence is checked for direct matches, paraphrases, and synonym substitutions.
Receive PDF Report
Your detailed PDF report arrives by email in as little as 15 minutes. It includes a plagiarism score, color coded highlights, and direct source links for every match found.
What the Plagiarism Checker Detects
Our plagiarism checker goes beyond simple copy-paste detection. It identifies four distinct forms of academic dishonesty and flags them all in a single report.
Direct Plagiarism
Word for word copies from any source without citation. Highlighted in red with source link.
Paraphrase Plagiarism
Ideas taken and reworded without attribution. Highlighted in yellow when structural matches are found.
Synonym Substitution
Replacing key words with synonyms to mask copied text. Highlighted in orange by pattern analysis.
Self plagiarism
Reuse of your own previously submitted or published work without disclosure. Also detected and flagged.
Everything Included in Your Plagiarism Check
One upload, one payment — a professional plagiarism report using the same university-grade technology your institution uses internally.
70+ Billion Sources
Web, academic journals, dissertations, books, and student paper databases.
Color-Coded PDF Report
Red, yellow, and orange highlights per match type — easy to interpret at a glance.
Overall Match Percentage
Single summary score so you know your risk level immediately.
Direct Source Links
Clickable URLs to every matched source found in your document.
Page-by-Page Breakdown
See exactly which pages and passages contain flagged content.
Paraphrase Detection
Catches synonym swaps and reworded content — not just direct copy-paste.
Results in 15 Minutes
Delivered by email — ready to review well before any deadline.
No Registration Required
Just upload, pay, and receive. No account, no sign-up form.
Trusted by universities and research institutions across Europe — the same technology your institution uses internally to review submitted papers.
Max. 50 MB · up to 999 pages
Plagiarism Scan
Complete plagiarism checking across 70+ billion sources.
- 70B+ sources searched
- Results in 15 minutes
- Color coded PDF report
- Paraphrases & synonyms detected
Combo: Plagiarism + AI
Everything from Plagiarism Scan
Everything from AI Scan
- Full plagiarism check
- AI detection per sentence
- Detects ChatGPT, Gemini & more
- Best price per page
Sentence by sentence AI detection with a 25 to 75 score.
- Sentence-level AI detection
- Scale: 25 (human) to 75 (AI)
- Results in 15 minutes
- ChatGPT, Gemini, Claude, Llama
Minimum Charge
Plagiarism Checker, Frequently Asked Questions
A plagiarism checker analyzes your text by breaking it into segments and comparing each segment against a vast database. Our tool uses PlagAware? Which searches over 70 billion sources, including academic databases, published websites, digital libraries, and previously submitted papers. Every matching passage is flagged with a color-code, a similarity percentage, and a link to the original source.
The PDF report contains: (1) an overall plagiarism percentage, (2) all detected matches color-highlighted by type, red for direct copies, yellow for paraphrases, orange for synonym substitutions, (3) clickable URLs linking directly to each original source, and (4) page numbers so you can locate every flagged passage in your document.
Yes, this is one of the key strengths of PlagAware. Unlike basic plagiarism tools that only catch exact matches, PlagAware uses semantic analysis to detect paraphrased content (where the meaning is copied but the words differ), synonym substitution (replacing words with synonyms), and structural imitation. This gives a more accurate and comprehensive result.
Pricing is based on the number of standard pages in your document. One standard page equals 1,800 characters including spaces, the international academic standard. We automatically calculate the page count from your uploaded file. A Plagiarism Scan costs $0.29 per page, with a minimum charge of $0.90.
Absolutely. Our plagiarism checker handles documents of any length, from short essays to full dissertations (up to 999 pages). For theses and dissertations, we recommend the Combo package (Plagiarism + AI Scan) to get comprehensive coverage against both traditional plagiarism and AI-generated content at the best possible price.
Yes. We offer a 100% money-back guarantee. If you do not receive your report within the expected time frame, or if there is a technical issue preventing a valid scan result, we will refund your payment in full, no questions asked. Contact us at kontakt@ai-checker-online.com.