
ZeroGPT & StealthWriter
FreemiumZeroGPT detects AI content; StealthWriter humanizes AI text to bypass detection.
- AI detection
- ChatGPT detector
- AI content humanizer
Both the detectors and the humanizers — tested against real GPT-5, Claude, and Gemini output.
The cat-and-mouse between AI detection and AI humanization evolves week by week. This collection benchmarks both sides — detectors scored on false-positive rate against human writers and recall on frontier models, and humanizers scored on detection-bypass rate plus preserved meaning. Use the picks for plagiarism policy enforcement, academic integrity, or legitimate content post-processing.
Jump to compare tools or explore the full ai detection anti detection category on the directory.
Scanner-friendly
Pricing shown as tier + amount only (long copy from vendor HTML is hidden here). Open each profile for full tiers and feature lists.
| Tool | Free tier | Pricing | Rating | Traffic / mo | Profile |
|---|---|---|---|---|---|
| ZeroGPT & StealthWriter | Yes | Smol $0 /month Super Pro $8.99 /month Pro $3.99 /month | 5.0 | 67.1k | View |
| Mark Copy AI | No | Enterprise PERSONNALISÉ Enterprise 5+ number of users… Team 750€ /month Team Up to 5 users, 1 AI adapt… | 5.0 | 66.0k | View |
| AHelp | Yes | Free $0 /credit Productive $8.33 /credit Essential $4.17 /credit | 5.0 | 65.3k | View |
| Detecting-AI | Yes | Free $0 Yearly $7 /month Monthly $14 /month | 5.0 | 64.6k | View |
| Scalenut | No | Pro $60 /month Growth Max $50.8 /month Managed Service Custom Managed Service The only fully-mana… Pro Max $78.8 /month +2 more on profile | 5.0 | 63.5k | View |
| Twixify | No | — | 5.0 | 63.1k | View |
| Caktus AI | No | — | 5.0 | 63.0k | View |
| WriterZen | No | All-In-One Basic $270 Keyword Research $135 All-In-One Advanced $405 Member Seats $9 /seat | 5.0 | 61.7k | View |
| Humanizar Texto | No | — | 5.0 | 60.0k | View |
| College Tools | Yes | Unlimited Access $0 /month | 5.0 | 60.0k | View |
| SurgeGraph | No | 1 Month $49.99 /month 3 Year $19.42 /month 1 Year $29.92 /month | 5.0 | 59.7k | View |
| myStylus | Yes | Free $0 Monthly $24 /month Quarterly $15 /month Annual $10.92 /month | 5.0 | 59.6k | View |
| SpeedAI | Yes | Free ¥0 Enhanced ¥148.80 /month Advanced ¥418.00 /month Starter ¥19.98 /month +3 more on profile | 5.0 | 59.4k | View |
| Imagga | Yes | Free $0 /month Pro $349 /month Indie $79 /month Enterprise Custombuilt Enterprise Above 1,000,000 API… | 5.0 | 58.6k | View |
| Lunchbreak AI | Yes | Plan Imported from ai_tools.is_free = true; ver… | 5.0 | 57.7k | View |
| TextGears | Yes | Free $0.00 /month Gold $79.96 /month Platinum Contactus Platinum Millions text checking … Silver $23.96 /month | 5.0 | 57.7k | View |
Rows reflect this page’s result set. Sorting is a view aid only — it does not change editorial order in JSON-LD lists.
Decision shortcuts
ZeroGPT & StealthWriter currently leads this shortlist on combined traffic and editorial rating — use it as your first live test against real work samples.
Primary pick
ZeroGPT & StealthWriter
Mark Copy AI is the best second stop when you need a different UX, integration path, or price structure without leaving this niche.
Primary pick
Mark Copy AI
Scan the shortlist

ZeroGPT detects AI content; StealthWriter humanizes AI text to bypass detection.

AI writing assistant for brand-aligned content creation with personalized AI.

AI-powered educational platform for writing, editing, and detection with 30+ free tools.

AI detection tool to identify and flag AI-generated content.

AI-SEO platform for planning, creating, and optimizing content to scale organic traffic.

Twixify humanizes AI text, clones writing styles, and bypasses AI detection.

AI assistant for students and professionals, offering writing, coding, and job application help.
AI-powered SEO content workflow software for research, planning, creation, and team collaboration.

Humanizar Texto rewrites AI text to sound human, bypass AI detection, and avoid plagiarism.

AI homework helper with tools for real-time assistance, mobile access, and AI chat.

SurgeGraph: AI tool for traffic growth via SEO-optimized, long-form content creation.

AI writing assistant for research, writing, and editing academic documents.

The ultimate academic ally: Bypass AI detection platforms like Turnitin, CNKI (知网), VIP (维普), and Gezida (格子达) with our AI humanizer. Plus, use SpeedAI 2.0 Agent to auto-generate Research Papers, PPTs, and Reports.

Image Recognition API for tagging, categorization, visual search, and content moderation.

Lunchbreak AI humanizes AI-generated text, making it undetectable and plagiarism-free.

Online grammar and spelling check platform supporting multiple languages.
Depth layer
Structured pros, cons, and positioning for each pick on this page — designed for scanners and AI-overview style summaries alike.
Rated 5.0/5 · ~67.1k visits/mo
ZeroGPT.cc is a free tool for detecting ChatGPT-generated content using advanced language models. It identifies text from AI tools like OpenAI ChatGPT, Google Bard, and Bing AI. StealthWriter converts AI-generated content into human content, bypassing AI detectors like Turnitin, GPTzero, and Originality AI.
Tags: AI detection, ChatGPT detector, AI content humanizer, Paraphrasing, Content rewriting, Plagiarism detection, SEO content, Academic integrity
Rated 5.0/5 · ~66.0k visits/mo
Mark Copy AI is an AI-powered writing assistant designed to help users create content that matches their brand voice. It offers over 40 templates and uses GPT-3 to assist with various content needs. The platform focuses on personalized AI, enabling users to create content that engages their audience and drives growth, moving away from generic AI-generated content.
Tags: AI content generation, Brand voice, SEO, Content marketing, Copywriting, Plagiarism detection, Content personalization
Rated 5.0/5 · ~65.3k visits/mo
AHelp is an AI-powered educational platform offering tools for plagiarism checking, idea generation, grammar improvement, and source citation. It aims to save students time and help them achieve academic excellence. The platform provides various tools to make homework, assignments, and essay writing easier, including a paraphraser, grammar checker, AI detector, and more. AHelp offers a one-stop solution for better writing with confidentiality, a money-back guarantee, and 30+ free AI writing tools.
Tags: AI writing assistant, Plagiarism checker, Grammar checker, Essay writer, Citation generator, AI detector, Paraphrasing tool, Academic writing
Rated 5.0/5 · ~64.6k visits/mo
Detecting-AI is an AI detection tool and AI checker designed to identify AI-generated content from models like ChatGPT, Gemini, and Claude. It helps users keep their content AI-free by detecting and flagging AI-generated text with high accuracy. The tool offers features like AI detection highlighting, plagiarism checking, fact-checking, and AI humanization.
Tags: AI detection, AI checker, Plagiarism checker, Fact checker, AI humanizer, Content authenticity, Academic integrity, Content verification
Rated 5.0/5 · ~63.5k visits/mo
Scalenut is an AI-SEO & Expert-Led Services platform designed to help businesses scale organic traffic and drive real business results. It offers a guided workflow to complete blog content in just 5 minutes, using AI-SEO tools and expert-led services from strategy to execution. The platform allows users to plan, research, create, and optimize content all in one place, with features like Cruise Mode, Content Optimizer, Keyword Planner, Traffic Analyzer, and more. Scalenut serves various industries, including Retail, Technology, Healthcare, Travel & Hospitality, and Finance, catering to users such as SEO Strategists, Content Creators, Executives, and Agencies.
Tags: AI SEO, Content Marketing, SEO Tools, Content Creation, SEO Optimization, Keyword Planner, Traffic Analysis, AI Content
Rated 5.0/5 · ~63.1k visits/mo
Twixify is an AI text humanizer designed to rewrite AI-generated text to sound more human and bypass AI detection. It allows users to clone their writing style, adjust syntax, tone, and flow to make the text appear more natural and undetectable by AI detectors. It also expands on text with SEO in mind, providing examples and organizing content according to Google's guidelines.
Tags: AI text humanizer, AI detection bypass, Writing style mimicry, SEO content optimization, Content rewriting, AI content undetectable, Humanize AI text
Rated 5.0/5 · ~63.0k visits/mo
Caktus AI is an AI solution designed to help students with essay writing, question answering, coding assistance, and professional job application support. It offers a range of tools, including academic paragraph generation, writing assistance, research support, mathematics problem-solving, coding help, and document management. Caktus AI aims to provide a unified AI interface for various academic and professional tasks.
Tags: AI writing assistant, Essay writing, Math solver, Coding help, Document management, Citation finder, Email generator, Summarizer
Rated 5.0/5 · ~61.7k visits/mo
WriterZen is an AI-powered content solution designed to streamline the SEO content workflow, from keyword research and clustering to content planning and creation. It helps users unlock top Google rankings by leveraging AI-driven strategies to captivate their audience and drive demand. WriterZen offers tools for topic discovery, keyword exploration, content creation, AI assistance, keyword planning, domain analysis, team collaboration, and plagiarism checking.
Tags: SEO, Content creation, Keyword research, Topic discovery, AI, Plagiarism checker, Team collaboration, Content planning
Rated 5.0/5 · ~60.0k visits/mo
Humanizar Texto is an advanced tool designed to rewrite texts in a way that makes them more human-like. It uses sophisticated algorithms to ensure that the text is natural, engaging, and free from detectable patterns that typical AI-generated content might have. It guarantees original, unique content, bypasses major AI detectors, and produces high-quality text for various applications. The tool transforms robotic AI text into human and engaging content, ensuring it is completely indistinguishable from human-written content. It avoids plagiarism detection, optimizes content for search engines, bypasses spam filters, enhances perplexity, and increases variability in sentence structure.
Tags: AI text humanizer, AI detection bypass, Plagiarism checker, SEO optimization, Spam filter evasion, Content rewriting, Paraphrasing tool
Rated 5.0/5 · ~60.0k visits/mo
College Tools is an LMS-integrated AI homework helper designed to assist students across all subjects and academic levels. It offers tools such as a Chrome extension for real-time responses, a mobile app for instant answers, and an AI chat for detailed educational support. The software aims to provide accurate quiz solutions, step-by-step guidance, and prevent detection by universities, supporting learning on platforms like Top Hat, Blackboard, Canvas, Schoology, and Moodle.
Tags: AI homework helper, Quiz solver, LMS integration, Chrome extension, Mobile app, AI chat, Plagiarism free, Undetectable AI
Rated 5.0/5 · ~59.7k visits/mo
Longform AI by SurgeGraph helps you quickly grow your organic traffic and achieve the Surge Effect. Improve and accelerate your content velocity by easily publishing a 5K long in-depth and SEO-optimized article in just a few clicks. SurgeGraph Vertex: AI Writing Tool For Traffic Growth. The world’s first ever AI tool built to grow your website’s traffic. Write humanlike content that ranks high and drives traffic with SurgeGraph.
Tags: AI writing tool, SEO, Content marketing, Traffic generation, Long-form content, Content automation, Topical authority, AI content
Rated 5.0/5 · ~59.6k visits/mo
myStylus is an intelligent AI-driven platform designed for researching, writing, and editing, ideal for students, academics, writers, and researchers who seek efficiency and innovation in writing. It offers features like relevant source finding, reference management, AI editing, and AI chat research.
Tags: AI writing assistant, Research tool, Essay writer, Paraphraser, Summarizer, AI detector, Humanizer, Citation generator
Rated 5.0/5 · ~59.4k visits/mo
SpeedAI is an all-in-one academic productivity suite that acts as both a shield for integrity and an engine for research acceleration. It combines a powerful AI Humanizer—proven to bypass major AI detectors like Turnitin, CNKI (知网), and VIP (维普) by reducing AI rates from 90% to under 5%—with the intelligent SpeedAI 2.0 Research Agent, which instantly generates full-scale academic deliverables like PPTs, Word docs, code, and literature reviews from a blank page. Whether you need to humanize AI text or create complex documents from scratch, SpeedAI handles it instantly.
Tags: AI Detector, Turnitin Bypass, AI Humanizer, PPT Generator, Academic Writing, CNKI, Office Copilot, Research Assistant
Rated 5.0/5 · ~58.6k visits/mo
Imagga Image Recognition API provides solutions for image tagging & categorization, visual search, content moderation. Available in the Cloud and On-Premise. Plans available to suit all needs. Subscription plans based on API calls.
Tags: Image Recognition API, Computer Vision, Image Tagging, Image Categorization, Visual Search, Content Moderation, Facial Recognition, Custom Training
Rated 5.0/5 · ~57.7k visits/mo
Lunchbreak AI is a tool designed to rewrite, humanize, and refine AI-generated text, making it undetectable by AI detection tools. It helps users transform AI content into original-sounding work, ensuring it bypasses plagiarism checks and maintains an authentic voice. It caters to students, academics, business professionals, and organizations looking to protect their reputation and work from being flagged as AI-generated.
Tags: AI Rewriter, AI Humanizer, AI Detection Bypass, Plagiarism Checker, Content Refinement, AI Content, Turnitin Bypass, GPTZero Bypass
Rated 5.0/5 · ~57.7k visits/mo
TextGears is an online platform that offers automatic grammar and spelling checks. It analyzes text to find errors and supports multiple languages, including English, Spanish, French, and Chinese. The platform provides features such as error correction, dialect consideration, readability assessment, vocabulary evaluation, and customizable dictionaries. It caters to businesses, universities, and students, offering API solutions for integration into various applications and research tools.
Tags: Grammar check, Spelling check, Readability, Text analysis, Error correction, API, Language tools, Writing assistant
Power users
High-level signals from our directory record. “Tag” columns are substring matches on vendor tags — confirm on each tool page before relying on them for procurement.
| Tool | Free tier | Rating | Traffic/mo | Profile |
|---|---|---|---|---|
| ZeroGPT & StealthWriter | Yes | 5.0 | 67.1k | Open |
| Mark Copy AI | No | 5.0 | 66.0k | Open |
| AHelp | Yes | 5.0 | 65.3k | Open |
| Detecting-AI | Yes | 5.0 | 64.6k | Open |
| Scalenut | No | 5.0 | 63.5k | Open |
| Twixify | No | 5.0 | 63.1k | Open |
| Caktus AI | No | 5.0 | 63.0k | Open |
| WriterZen | No | 5.0 | 61.7k | Open |
| Humanizar Texto | No | 5.0 | 60.0k | Open |
| College Tools | Yes | 5.0 | 60.0k | Open |
| SurgeGraph | No | 5.0 | 59.7k | Open |
| myStylus | Yes | 5.0 | 59.6k | Open |
| SpeedAI | Yes | 5.0 | 59.4k | Open |
| Imagga | Yes | 5.0 | 58.6k | Open |
| Lunchbreak AI | Yes | 5.0 | 57.7k | Open |
| TextGears | Yes | 5.0 | 57.7k | Open |
Pros: You get a density of ai detection anti detection tools that already passed category matching and ranking signals, which cuts research time versus open-ended search. About 9 entry/entries advertise free access in our data — useful for pilots.
Cons: Any directory view lags vendor roadmaps. Pricing chips and tags are not legal commitments — enterprise buyers should still run security review and contract redlines off each official site.
Below is a roll-up of how vendors in this ai detection anti detection cluster label themselves in our directory. Treat it as a scanner-friendly shortcut — not a substitute for checkout-page verification.
Chips summarize tier + price from each record (vendor long copy omitted here). Currency and terms can change without notice.
The cat-and-mouse between AI detection and AI humanization evolves week by week.
We re-check pricing labels and positioning quarterly (or sooner when a vendor ships a materially new SKU). Tools must remain discoverable under this collection’s category scope.
We do not accept payment to appear in a curated ranking slot; sponsored inventory, if any on the wider site, is labeled separately from editorial ordering on this page.
You need repeatable quality, clear upgrade paths, and pricing that scales with seats or usage. Prioritize tools with strong ratings and transparent tiers in the matrix below.
You will care about auditability: capture screenshots of pricing pages, confirm SSO or data residency on vendor sites, and shortlist 2 finalists from the comparison table.
Start from the free-tier column, validate output on your own assets, then upgrade only when a tool clears a hard ROI bar.
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