Paste your text, check for duplicate content instantly. Sentence-by-sentence analysis with highlighted results — all client-side, nothing leaves your browser.
Built for writers, students, and content creators who value accuracy and privacy.
Text is analyzed sentence-by-sentence with advanced fingerprinting algorithms. Get results in seconds, not minutes.
Your text never leaves your browser. No storage, no third-party data sharing. Check sensitive content with confidence.
Matching passages are highlighted in your text with color-coded severity. See exactly which sentences need attention.
Get a clear percentage score showing how much of your text may contain duplicate content from other sources.
Drop a .txt file directly into the editor. No need to copy-paste — just drag your document and start checking.
Copy your plagiarism report with one click. Share results with editors, teachers, or keep for your records.
Try our free JSON Formatter & Validator — instant formatting, syntax highlighting, and error detection.
Understand what plagiarism is, the different types, and real-world examples of each form.
A step-by-step guide to checking your writing for duplicate content before submission.
Why students need plagiarism checkers and how to use them to ensure academic integrity.
Practical tips and techniques for writing original content and properly citing sources.
Learn the line between acceptable paraphrasing and plagiarism, with examples.
Format, validate, and beautify JSON instantly. Syntax highlighting, error detection, minification.
Format XML, SQL, CSS, HTML, and JavaScript instantly. Syntax highlighting, minification, line numbers.
Generate QR codes for URLs, WiFi, contacts, and email. Custom colors and sizes. PNG & SVG download.
Generate strong, secure passwords with entropy meter, batch generation, and pattern mode.
Search by image across Google Lens, TinEye, Yandex, and Bing. Upload, paste, or enter a URL.
Calculate monthly payments with amortization schedule, payment breakdown charts, and CSV export.
Calculate simple and compound interest with growth charts and year-by-year breakdowns.
Compare two texts with color-coded additions, deletions, and changes. Side-by-side view.
Test regex patterns with live highlighting, capture groups, substitution, and cheat sheet.