Free trial
Core tools can be tried without paying, and the site invites users to start for free. Paid plans are needed for heavier use.
Learn moreUndetectable AI
Detect AI content, humanize text, and check images from one dashboard
Beginner
Own Undetectable AI? Verify ownership to get a dofollow link
What is Undetectable AI?
Undetectable AI is an AI checker tool that detects AI content, humanize text, and check images from one dashboard. A combined AI detector and humanizer that flags which sentences look machine written, rewrites them to read naturally, and adds image, PDF, and voice detection tools.
Undetectable AI is a web platform built around one practical question: how does this piece of content read to a machine? The core workflow starts with the AI Detector, which scans pasted text or an uploaded file of up to 5,000 words and highlights the specific sentences most likely to be flagged as AI generated. From that report, the AI Humanizer rewrites the problem passages by varying sentence structure, enriching vocabulary, and adjusting tone, with the stated goal of producing text that scores as human written on major detectors while staying readable. The toolkit extends well beyond text. An AI Image Detector gives an instant verdict on whether a picture was machine made, a Fake PDF Detector checks whether a document has been edited or AI generated, and an AI Voice Detector analyzes recordings for synthetic speech. An AI Job Applier handles a different chore entirely, applying to matching roles on the user's behalf. A Chrome extension carries the detection and humanizing tools into Google Docs, Gmail, and any other page where typing happens, so the round trip out of a document is optional. Students, educators, content writers, marketers, SEO specialists, and business owners are the named audiences. English gets the most accurate results, though the company says its tools cover more than 50 languages. Business Solutions adds stricter data-retention controls for teams, and the site states that submitted text is never sold. Where it fits: most competitors sell either a detector or a paraphraser. Undetectable AI bundles both plus media forensics, which suits people who need to check work and fix it in the same session. The obvious tension is that humanizing output to beat detection invites scrutiny from the institutions running those detectors, and results vary by detector and by text. Treat the scores as a signal, not a guarantee.
How do you use Undetectable AI?
1Run the AI Detector on your draft
Paste up to 5,000 words or upload a file, then run the check. The report shows which sentences read as AI generated so you know what needs work.2Humanize the flagged passages
Send the text to the AI Humanizer, which rewrites sentence structure, vocabulary, and tone. Read the result before using it; expect some manual tidying.3Re-check the rewritten text
Run the humanized version back through the detector to see how the score moved. Iterate on any sentences that still flag.4Verify images, PDFs, and audio
Use the image, PDF, and voice detectors when the content you are checking is not plain text, for example a suspicious screenshot or a recorded call.5Add the Chrome extension for in-page checks
Install the extension to detect and humanize from Google Docs, Gmail, or any webpage without copying text into a separate tab.6Pick a plan once usage grows
Start free to test limits. Compare paid tiers when you hit caps or need team features and data-retention controls.
Pros and cons
Pros
- Detection and rewriting live in one place, so flagged sentences can be fixed without switching appsAI
- Sentence-level highlighting in the detector report makes edits targeted rather than rewriting whole documentsAI
- Unusual breadth for the category: image, PDF, and voice detection plus a Chrome extensionAI
- Free tier lets you test the core detector and humanizer before committing to a planAI
- Business plans advertise stricter data-retention controls for team useAI
Cons
- The whole premise depends on outrunning detectors, and scores shift as those detectors are retrained, so no result is permanentAI
- Using the humanizer to disguise AI text in graded or submitted work can breach academic and workplace policies regardless of what the score saysAI
- Accuracy is strongest in English; the 50+ language support is not matched by equal quality across languagesAI
- Humanized output can flatten an author's voice or introduce awkward phrasing, so every rewrite still needs a human readAI
- Pricing tiers, word limits, and what each plan unlocks are not spelled out on the homepage, so you have to check the pricing page before budgetingAI
How much does Undetectable AI cost?
Pricing
The homepage confirms a free starting point with paid plans that unlock higher limits and advanced features, and the pricing page is where tiers are compared. It does not list specific prices or per-plan word limits.
Learn moreSupport
Questions go to contact@undetectable.ai. A FAQ on the homepage covers how the tools work, privacy, languages, and browser use.
Integrations
A Chrome extension brings the detection and humanizing tools into Google Docs, Gmail, social media, and other webpages. No other third-party integrations are described on the homepage.
Learn moreFeatures
AI Detector with sentence-level flagging, AI Humanizer for rewriting flagged text, AI Image Detector, Fake PDF Detector, AI Voice Detector, an AI Job Applier, a Chrome extension for in-page use, and Business Solutions with stricter data-retention controls. Text input supports up to 5,000 words.
Learn moreFrequently asked questions about Undetectable AI
How much does Undetectable AI cost?
The homepage confirms a free starting point with paid plans that unlock higher limits and advanced features, and the pricing page is where tiers are compared. It does not list specific prices or per-plan word limits.Does Undetectable AI offer a free trial?
Core tools can be tried without paying, and the site invites users to start for free. Paid plans are needed for heavier use.How do you use Undetectable AI?
The walkthrough on this page covers 6 steps: 1. Run the AI Detector on your draft 2. Humanize the flagged passages 3. Re-check the rewritten text 4. Verify images, PDFs, and audio 5. Add the Chrome extension for in-page checks 6. Pick a plan once usage grows.What platforms does Undetectable AI support?
Undetectable AI is available on Web App and Browser extension.What does Undetectable AI integrate with?
A Chrome extension brings the detection and humanizing tools into Google Docs, Gmail, social media, and other webpages. No other third-party integrations are described on the homepage.What are the limitations of Undetectable AI?
The whole premise depends on outrunning detectors, and scores shift as those detectors are retrained, so no result is permanent. Using the humanizer to disguise AI text in graded or submitted work can breach academic and workplace policies regardless of what the score says. Accuracy is strongest in English; the 50+ language support is not matched by equal quality across languages.
Status
StatusActive
Views0
Outbound clicks0
Added10/21/2026
Platforms
Web AppBrowser extension
Pricing
FreemiumSubscription
