AI Detection & Anti-Detection
Best AI Detector Tools in 2026: Free & Paid Picks
AI Detector is a broad category for reviewing whether material may have been created by AI. Use AI Detector to compare tools for accuracy, evidence, false positives, content type, and practical review workflows.
106Total AI Detector Tools28Most Relevant AI Detector Tools21Free AI Detector ToolsAI Detector Tools updated Jul 21, 2026
Top tools
Top 10 AI Detector Tools
Explore top AI Detector Tools ranked by category fit, free access, AI-powered features, traffic, and pricing context.
Paid
Ze
ZeroGPT
An online AI detection tool to verify content originality and identify machine-generated text.
AI text detection with sentence-level highlighting and percentage indicatorsDeepAnalyse™ multi-stage methodology to evaluate content originSupport for multiple languagesBatch file uploading and automated dashboard checks+3
Paid
Gp
Gptzero me
Advanced AI detector and checker for identifying machine-generated text.
Multi-model AI detection (ChatGPT, GPT-4, Gemini, Claude, LLaMa)Sentence-level AI highlighting and vocabulary analysisPlagiarism checker and source verificationWriting reports with video replay for authorship verification+2
Paid
Sc
Scribbr
Academic success platform featuring proofreading, plagiarism checking, and citation tools.
Professional Human Proofreading & Editing (results in as little as 3 hours)Plagiarism Checker utilizing advanced university-level softwareAI Detector capable of identifying content from ChatGPT, Perplexity, and other generative toolsFree Citation Generator supporting APA style, MLA, Chicago, AMA, IEEE, and ACS+2
Free plan
hC
hCaptcha
Privacy-focused enterprise AI security platform to block malicious bots and online fraud.
World-class bot protection and advanced threat signature clusteringFrictionless 99.9% passive mode (No-CAPTCHA) to optimize user experienceZero-PII private learning models to ensure compliance with GDPR, CCPA, LGPD, and PIPLSophisticated account defense mechanisms targeting account takeover, credential stuffing, and transaction fraud+2
Free plans
Best Free AI Detector Tools
Start with free AI detector tools that cover practical website workflows, core features, and AI-powered output quality.
| Tool | Plan status | Pricing | Traffic | Feature preview | Website |
|---|---|---|---|---|---|
| hCaptcha | Free option | Free, Pro from $99/mo billed annually | 4.5M/mo | World-class bot protection and advanced threat signature clustering, Frictionless 99.9% passive mode (No-CAPTCHA) to optimize user experience | Visit |
| MyDetector | Free option | Free | 859K/mo | High-precision AI detection for ChatGPT, GPT-4, and Gemini, All-in-one AI text humanizer to transform AI writing into natural content | Visit |
| Human or Not: A Social Turing Game | Free option | Free | 593K/mo | Two-minute fast-paced chatroulette style matching, Social Turing test mechanics to evaluate AI conversational capabilities | Visit |
| Humanizeaitext AI | Free option | Free version available | 277K/mo | Advanced AI-to-human text conversion with 100% human score guarantee, Five diverse writing modes: Standard, Shorten, Expand, Simplify, and Improve Writing | Visit |
| Dechecker | Free option | Free | 241K/mo | Sentence-Level AI Detection to pinpoint exactly which parts of the writing are AI-generated, Multi-Language Support for global academic papers, blogs, and business documents | Visit |
| OctoEverywhere | Free option | Free, Supporter Perks from $3.99/mo | 174K/mo | Unlimited secure remote access utilizing an end-to-end encrypted tunnel, Next-Gen AI failure detection (Gadget) with automatic print pausing | Visit |
| AI Detector - io | Free option | Free, Premium subscription options available | 174K/mo | Precision-based AI content detection scanning sentence structure and language uniformity, AI Humanizer to refine robotic text into natural language | Visit |
| AI Detector Writer | Free option | Free | 130K/mo | Real-time text analysis with instant percentage breakdowns, Support for batch file uploads to scan multiple documents simultaneously | Visit |
| Detecting-AI.com | Free option | Free, Premium from $7/mo | 108K/mo | AI detection highlighting showing probability by sentence, Detailed reports on percentage of AI-generated content | Visit |
| Flypix | Free option | Free, Starter from €50/mo, 7-day Free Trial available on paid plans | 103K/mo | No-code custom AI model training for object detection and semantic segmentation, Support for high-resolution satellite, aerial, and drone imagery | Visit |
Traffic
Most visited AI Detector Tools
Use traffic, free-plan status, and starting price to compare the most visited tools in this category.
| Tool | Traffic | Free plan | Starting price | Website |
|---|---|---|---|---|
| ZeroGPT | 21M/mo | No | Free, Pro from $7.99/mo | Visit |
| Gptzero me | 12M/mo | No | Free, Essential from $8.33/mo | Visit |
| Scribbr | 5.2M/mo | No | Free basic tools, premium services vary by document length and deadline | Visit |
| hCaptcha | 4.5M/mo | Yes | Free, Pro from $99/mo billed annually | Visit |
| Branded | 3.9M/mo | No | Contact for Pricing | Visit |
| Undetectable.ai | 2.9M/mo | No | Free to try, pricing scales based on requirements | Visit |
| Copyleaks | 2.7M/mo | No | Starts at $7.99/mo | Visit |
| Aura | 2.2M/mo | No | Starts at $10/mo | Visit |
Browse all tools
Top AI Detector Tools Comparison
Browse all AI Detector Tools in this category with search, free-plan filtering, sorting, website signals, pricing, and AI-powered feature context.
| Tool | Free | Pricing | Traffic | Features | Website |
|---|---|---|---|---|---|
| Gptzero me | No | Free, Essential from $8.33/mo | 12M/mo | Multi-model AI detection (ChatGPT, GPT-4, Gemini, Claude, LLaMa), Sentence-level AI highlighting and vocabulary analysis | Visit |
| Undetectable.ai | No | Free to try, pricing scales based on requirements | 2.9M/mo | Multi-model AI text detection covering ChatGPT, Gemini, Claude, and Llama, All-in-one collective scoring interface displaying results from major detectors simultaneously | Visit |
| hCaptcha | Yes | Free, Pro from $99/mo billed annually | 4.5M/mo | World-class bot protection and advanced threat signature clustering, Frictionless 99.9% passive mode (No-CAPTCHA) to optimize user experience | Visit |
| ZeroGPT | No | Free, Pro from $7.99/mo | 21M/mo | AI text detection with sentence-level highlighting and percentage indicators, DeepAnalyse™ multi-stage methodology to evaluate content origin | Visit |
| MyDetector | Yes | Free | 859K/mo | High-precision AI detection for ChatGPT, GPT-4, and Gemini, All-in-one AI text humanizer to transform AI writing into natural content | Visit |
| Walter AI | No | Free trial available, Starter from $7/mo | 1.1M/mo | Advanced Humanization Engine to make AI text sound completely human, Built-in precise AI Detector to instantly check AI-generated content | Visit |
| Onfido | No | Contact for Pricing | 1.1M/mo | Real Identity Platform for end-to-end orchestration, Onfido Studio for low-code/no-code workflow building | Visit |
| Lynote | No | Free, Premium plans available | 1.6M/mo | AI Detector with color-coded analysis to detect AI content with high accuracy, YouTube Downloader to save videos in high-quality MP4 or MP3 formats | Visit |
| Scribbr | No | Free basic tools, premium services vary by document length and deadline | 5.2M/mo | Professional Human Proofreading & Editing (results in as little as 3 hours), Plagiarism Checker utilizing advanced university-level software | Visit |
| Winston AI | No | Free, Essential from $12/mo | 615K/mo | AI text detection for advanced models including ChatGPT, Gemini, and Claude, Cutting-edge plagiarism detection technology with highlighted sources | Visit |
| Copyleaks | No | Starts at $7.99/mo | 2.7M/mo | Simultaneous AI content and plagiarism detection, Detection of major AI models including ChatGPT, Gemini, and Claude with over 99% accuracy | Visit |
| Originality | No | Pay as you go from $30, Pro from $12.95/mo | 1.9M/mo | Patented AI content detector with 99%+ accuracy on modern LLMs like GPT-4o and Claude 3, Advanced paraphrase detection capable of identifying text rewritten by tools like Quillbot | Visit |
| Plagiarismcheck.org | No | Free, Individual plans from $2.99/mo | 323K/mo | Advanced similarity detection for exact matches, structural rearrangements, and synonym substitutions, TraceGPT AI detector to identify machine-generated text (including ChatGPT) | Visit |
| netradyne.com | No | Contact for Pricing | 569K/mo | Real-time AI distracted driving detection (drowsiness and texting), In-cab audio alerts for proactive driver behavior correction | Visit |
| Lakera Guard | No | Free, Enterprise pricing available upon request | 259K/mo | Runtime security with Lakera Guard API, Data leakage and PII detection | Visit |
| Surfer | No | Starts at $79/mo | 431K/mo | Content Editor with real-time structural, keyword, and formatting guidelines, Surfer AI for rapid generation of highly optimized articles | Visit |
| Humanizeaitext AI | Yes | Free version available | 277K/mo | Advanced AI-to-human text conversion with 100% human score guarantee, Five diverse writing modes: Standard, Shorten, Expand, Simplify, and Improve Writing | Visit |
| AI or Not | No | Free, BASE from $5/mo billed annually | 251K/mo | Image AI detector capable of identifying Midjourney, Stable Diffusion, DALL-E, GAN, and Generated Faces, Audio AI Checker to identify synthetic voices and defend music copyright | Visit |
| Vectra | No | Contact for Pricing | 184K/mo | Attack Signal Intelligence for real-time threat prioritization, Comprehensive coverage across network (NDR), identity, and multi-cloud environments | Visit |
| AI Detector - io | Yes | Free, Premium subscription options available | 174K/mo | Precision-based AI content detection scanning sentence structure and language uniformity, AI Humanizer to refine robotic text into natural language | Visit |
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