Undetectable AI: Humanizer

Undetectable AI helps you check any piece of writing and images for AI-generated content, detect whether content appears to be created by AI, and rewrite AI text so it reads naturally again and become undetectable.

Paste your text or upload a PDF or DOC file, and the app tells you which parts look AI written and which parts read like a human wrote them. If you get flagged, use the humanize tool to rewrite the same text in a way that keeps your meaning but sounds like your own natural writing.

Who this is for

Students checking assignments before submission, writers and bloggers reviewing drafts, freelancers making sure their work reads naturally, and anyone who wants a second opinion on whether their text sounds too much like it came from an AI tool.

How it works

Open the Detect tab, paste your text or upload a file, and tap check. You will see a percentage score along with sentence level highlighting so you know exactly which lines triggered the AI flag.

If you want to rewrite flagged content, switch to the Humanize tab. Paste the same text and the app rewrites it while keeping your original meaning intact. You can go back and forth between checking and humanizing until you are happy with the result.

AI Image Detector

You can also check images to see whether they appear to be AI generated. Upload an image from your device and the AI Image Detector analyzes it to help identify whether it looks like it was created by artificial intelligence or captured or created naturally.

The tool provides an easy-to-understand result, helping you quickly check images before sharing, publishing, or using them. Whether you are reviewing online images, digital artwork, or other visual content, the AI Image Detector gives you a second opinion about its likely origin.

Free and Pro plans

The free plan gives you a daily word limit and a set number of checks per day, shared between the detector and the humanizer. Upgrade to Pro for a higher word limit, unlimited daily checks, and the ability to upload PDF and DOC files directly.

Your history is saved locally on your device so you can look back at anything you have checked or rewritten, split into separate detect and humanize sections.

Privacy

We only send your text to our detection and rewriting services to generate a result. It is not stored afterward or used for anything else. There are no ads in this app.