Undetectable AI

Overview

Undetectable AI is a machine-learning-powered content platform that enables individuals and teams to detect, humanize, rewrite, and refine AI-assisted digital content in a single workspace. It addresses the growing need for content authenticity by combining multi-model AI detection, writing-style enhancement, and image authenticity verification. The platform serves students, researchers, content creators, SEO professionals, educators, and marketers, providing both a free tier for core tools and paid plans for higher limits and advanced features. It is built as a web-based application with broad browser compatibility, and is also available through a Chrome extension and a developer API.

The platform's core workflow centers on its AI Detector, which analyzes submitted text the way a detector would, identifying specific sentences or segments likely to be flagged as machine-generated. The AI Humanizer then rewrites those sections by varying sentence structure, enriching vocabulary, and adjusting tone, producing output that reads as natural human writing while preserving the original meaning and intent. Undetectable AI supports more than 50 languages, with English delivering the highest accuracy for both detection and humanization. Beyond text, the suite includes an AI Image Detector for real-time visual authenticity checks, an AI Audio Detector for voice recordings, a Fake PDF Detector for edited or AI-generated documents, and additional writing support tools such as paraphrasing and essay generation.

For deployment flexibility, Undetectable AI offers a Chrome Extension that brings detection and humanization tools directly into Google Docs, Gmail, social media platforms, and general web pages, reducing friction in daily writing workflows. Business Solutions provide data-retention controls and scalable processes tailored for team-based content operations, while the API enables developers to integrate detection and rewriting capabilities into their own applications. The platform emphasizes privacy and safety: user text is never sold, and the service is designed to be reliable for academic, professional, and enterprise use.

With more than 24 million users and recognition from leading industry publications, Undetectable AI is positioned as a practical infrastructure layer for anyone working with generative AI output. It helps writers and businesses reduce the risk of content being falsely flagged, maintain a consistent human voice, and accelerate content production without expanding headcount. By combining authenticity checks, humanization, and writing improvement in one platform, Undetectable AI enables confident publication across academic, commercial, and creative contexts.

Core capabilities

AI Detector

Multi-model content analysis that scans text sentence-by-sentence to highlight portions likely to be flagged as AI-generated.

AI Humanizer

Rewrites flagged text by varying sentence structure, enriching vocabulary, and adjusting tone so the output reads naturally human and scores as human on major detectors.

AI Image Detector

Provides instant image authenticity verification to determine whether a visual asset is real or AI-generated.

AI Audio Detector

Analyzes voice recordings and audio files to identify whether speech was produced by AI.

Fake PDF Detector

Checks PDFs for signs of forgery, editing, or AI generation.

Chrome Extension

Provides one-click access to detection and humanization tools across Google Docs, Gmail, social media, and any webpage.

Multi-Language Support

Supports 50+ languages, with English offering the highest accuracy for both detection and humanization.

AI Job Applier

Uses AI to help users automatically apply to relevant job openings, streamlining the job search process.

Business Solutions & API

Offers team-friendly data-retention controls, scalable workflows, and a developer API for integrating AI content tools into existing systems.

Use cases

Checking and rewriting AI-generated drafts before academic submission.

Producing human-sounding blog posts, articles, and marketing copy at scale.

Verifying whether images are real or AI-generated before publication or sharing.

Rewriting client-facing emails, reports, proposals, and pitches to sound natural and authentic.

Automating job applications with the AI Job Applier.

Maintaining brand voice and content quality across team-based content operations.

Integrating AI detection and humanization features into custom applications via API.