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.
108Total AI Detector Tools29Most Relevant AI Detector Tools22Free AI Detector ToolsAI Detector Tools updated Sep 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 |
| Clever AI Detector | Free option | Free with no fixed monthly word allowance | 2.9M/mo | Humanizes AI-assisted text while preserving its original meaning, Improves tone, sentence structure, clarity, and readability | Visit |
| Human or Not: A Social Turing Game | Free option | Free | 693K/mo | Two-minute fast-paced chatroulette style matching, Social Turing test mechanics to evaluate AI conversational capabilities | Visit |
| MyDetector | Free option | Free | 666K/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 |
| Humanizeaitext AI | Free option | Free version available | 225K/mo | Advanced AI-to-human text conversion with 100% human score guarantee, Five diverse writing modes: Standard, Shorten, Expand, Simplify, and Improve Writing | Visit |
| OctoEverywhere | Free option | Free, Supporter Perks from $3.99/mo | 175K/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 | 137K/mo | Precision-based AI content detection scanning sentence structure and language uniformity, AI Humanizer to refine robotic text into natural language | Visit |
| Dechecker | Free option | Free | 100K/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 |
| Flypix | Free option | Free, Starter from €50/mo, 7-day Free Trial available on paid plans | 91K/mo | No-code custom AI model training for object detection and semantic segmentation, Support for high-resolution satellite, aerial, and drone imagery | Visit |
| AI Detector Writer | Free option | Free | 88K/mo | Real-time text analysis with instant percentage breakdowns, Support for batch file uploads to scan multiple documents simultaneously | 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 | 11M/mo | No | Free, Essential from $8.33/mo | Visit |
| Scribbr | 5.4M/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 | 4.1M/mo | No | Contact for Pricing | Visit |
| Clever AI Detector | 2.9M/mo | Yes | Free with no fixed monthly word allowance | Visit |
| Undetectable.ai | 2.3M/mo | No | Free to try, pricing scales based on requirements | 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 |
|---|---|---|---|---|---|
| Vectra | No | Contact for Pricing | 176K/mo | Attack Signal Intelligence for real-time threat prioritization, Comprehensive coverage across network (NDR), identity, and multi-cloud environments | Visit |
| Protectstar | No | Free, Business options available on request | 181K/mo | Permanent Data Shredding: Securely erases files, folders, and free space so they cannot be recovered, complying with international standards., Anti-Spyware and Antivirus AI: Detects and blocks malware, spyware, and unauthorized background processes. | Visit |
| AI Detector - io | Yes | Free, Premium subscription options available | 137K/mo | Precision-based AI content detection scanning sentence structure and language uniformity, AI Humanizer to refine robotic text into natural language | Visit |
| Resemble | No | Free, Starter from $5/mo | 271K/mo | Voice Cloning (Rapid and Professional high-fidelity options), Text-to-Speech with emotional control and emphasis adjustment | Visit |
| OctoEverywhere | Yes | Free, Supporter Perks from $3.99/mo | 175K/mo | Unlimited secure remote access utilizing an end-to-end encrypted tunnel, Next-Gen AI failure detection (Gadget) with automatic print pausing | Visit |
| AI UNDETECT | No | Free, Basic from $5/mo | 92K/mo | Multi-detector integration evaluating content against systems like GPTZero, Copyleaks, and Turnitin simultaneously., Custom-trained anti-detection language model optimized via reinforced learning on a 1B tokens corpus. | Visit |
| Spamdrain antispam | No | Starter from €1.83/mo, Plus from €3.75/mo | 140K/mo | AI-powered smart spam filtering, Newsletter and marketing email filter | Visit |
| Uncheck AI | No | Free, Basic from $6.99/mo | 111K/mo | Dual AI Checker & Humanizer to check and rewrite content simultaneously, One-click multi-detector scanning including GPTZero, Copyleaks, and ZeroGPT | Visit |
| getsolved.ai | No | Free, Unlimited Monthly from $19.99/mo | 422K/mo | AI Humanizer to transform robotic phrasing into natural-sounding text, AI Detector to check and spot AI-written content | Visit |
| Gamma.ai | No | Contact for Pricing | 78K/mo | One-click deployment across all cloud applications, devices, and users, 99.5% accurate data classification powered by advanced deep learning ML profiles | Visit |
| Nightfall AI for Zendesk | No | Contact for Pricing | 101K/mo | AI-Native Detection & Response: Uses LLM and behavioral models to deeply understand content sensitivity and lineage., Data Exfiltration Prevention: Automatically tracks and blocks sensitive data from leaving unmanaged and managed endpoints, browsers, and SaaS applications. | Visit |
| Facia | No | Free Trial, custom plans contact for pricing | 84K/mo | 3D Liveness Detection (Active & Passive), Deepfake Detection for images, videos, and e-meetings | Visit |
| ZeroGPT.Tools | Yes | Free | 58K/mo | Multi-model AI detection supporting ChatGPT, Gemini, Claude, LLaMA, and Copilot, DeepScan text analysis highlighting specific sentences with color-coded results | Visit |
| AI Detector Writer | Yes | Free | 88K/mo | Real-time text analysis with instant percentage breakdowns, Support for batch file uploads to scan multiple documents simultaneously | Visit |
| Detecting-AI.com | Yes | Free, Premium from $7/mo | 57K/mo | AI detection highlighting showing probability by sentence, Detailed reports on percentage of AI-generated content | Visit |
| IDScan.net | No | Starts at $33/mo per device, ParseLink from $540/yr, DIVE API from $0.89/scan | 71K/mo | AI-powered fake ID detection and multi-wavelength ID authentication (UV, IR, and white light), VeriScan Identity Platform for cloud-based visitor log creation and age verification | Visit |
| carcogroup.com | No | Contact for Pricing | 41K/mo | Mobile AI Fraud Prevention application with dual-functionality for self-inspections or designated site utility, Extensive vehicle pre-insurance inspection network with over 6,000 sites across 17 states | Visit |
| AI Detector by ContentDetector.AI | Yes | Free | 0/mo | AI content detection with maximum accuracy for ChatGPT, GPT-3, GPT-4, and Claude, Percentage-based reporting with real source indication | Visit |
| ZeroGPT.CC | No | Free, Premium plans available | 83K/mo | AI content humanization to convert robotic text into natural writing, Built-in AI detector to verify content origin | Visit |
| Human or Not? | Yes | Free | 28K/mo | Two-minute anonymous chat sessions, Random pairings with either real human players or state-of-the-art LLMs | Visit |
Showing 21-40 of 108 AI Detector Tools matchesBrowse more tools in this category.