What Polygraf AI Content Detector does

Polygraf AI Content Detector: Advanced Plagiarism & ChatGPT Detector, published by Investors, is listed for Chrome. The developer describes its purpose as “Get Free Polygraf AI content detector with plagiarism checker to identify ChatGPT, Gemini, Mistral, Llama, Grammarly.” This guide brings together the documented features, installation entry points and compatibility details so you can decide whether it fits your task.

Documented features

The official listing documents the capabilities below. Compare the functions you need with the available platform and paid-feature information before installing. These are the developer’s descriptions, not independent performance or security test results.

“We've introduced some major upgrades:”
“Fresh New Design: A sleek interface to make your workflow seamless.”
“For Standard/Premium Plan Holders:”
“Instant Summaries: Get quick summaries for any text.”
“Pin the Polygraf AI Detector to your extension bar”
“Log in using Google or Sign up with your email”

Installing and opening Polygraf AI Content Detector

Open the Chrome Web Store link, confirm Polygraf AI Content Detector: Advanced Plagiarism & ChatGPT Detector and the publisher Investors, then select Add to Chrome. Read the requested permissions before confirming. After installation, Chrome’s Extensions menu provides access to the extension; pinning its toolbar icon is optional. To disable or remove it later, use Chrome’s Manage Extensions page.

The manifest declares a toolbar action. Use its toolbar entry to open the extension’s action.

Using the documented workflow

Start with the operation that matches your task. The following actions are documented in the official listing; they are separate usage options, not a sequence that every user must complete. For controls not named here, consult https://polygraf.ai/contact#form rather than assuming a particular button or menu exists.

“Scan Anything, Anywhere: Highlight text and click our yellow Polygraf icon for instant detection—it's always right where you need it.”
“Text Editing Magic: Edit and scan text in one space, no more tab-hopping!”
“Highlight text and click the extension icon to start detecting with our ChatGPT and Plagiarism checker.”
“Deception Filter (Web interface only): Detects intentional and unintentional text modifications aimed at deceiving AI models, such as empty spaces between words, deliberate grammatical errors, or alterations by Grammarly.”

Platforms, version and interface languages

Verified store editions: Chrome. The captured version is 1.9.7, with an update date of 2026-08-11. Version numbers and release timing can differ between stores. Only the browser-store buttons shown here were verified. A shared browser engine does not establish a separate official store edition.

The official store lists 1 interface languages. The supported-language tags on this page come from that product metadata; they are separate from the eight languages available for this guide. Check the current store if a particular language is essential to your workflow.

Price and paid features

The developer describes a free tier, trial or free version alongside paid features. Check the official website for the current feature limits and price in your region. Installing the browser package and subscribing to a connected service are separate actions; a browser-store button alone does not establish which paid features are included.

Permissions, privacy and practical limits

The published extension manifest lists these API permissions: storage, identity, contextMenus. These are declared capabilities, not proof of what data the developer actually collects. Review Chrome’s installation prompt and the developer’s privacy policy (https://polygraf.ai/privacy-policy) before granting access.

Chrome’s extension details let you inspect site access and disable the extension. If an expected control does not appear, check that the extension is enabled and that the current site is one supported in its description. Do not extend access to every site merely to troubleshoot a single website.

Questions about Polygraf AI Content Detector

Where is the official download? Use the Chrome Web Store button for the exact listing referenced in this guide: https://chromewebstore.google.com/detail/cbngnnhgfljncoliddifmkgklphlojnf?hl=en. For other verified platforms, use their separate store buttons. This page does not distribute installation packages or modified copies.

Where should I look if a feature has changed? Compare the current store version with 1.9.7, then check https://polygraf.ai/contact#form. The store screenshots show the supplied product imagery, but later releases and device layouts may differ. Use the official support channel for account, billing and product-specific issues.

Screenshots