AI Writing Detector
The best 50 AI Writing Detector tools - Free & Paid
Explore 50 AI for AI Writing Detector
AI Thesis Writer is a research-to-writing tool that generates structured, citation-aware thesis drafts across 57+ languages. It auto-creates chapters, embeds formatted references in common styles, and exports editable PDF/DOCX files for academic workflows.
Freemium
- $6/mo
AI Detector Pro provides comprehensive recognition of AI-generated text and includes advanced features to manage AI generation reports efficiently.
Free trial
AI Detector evaluates text for AI authorship likelihood, delivering a percentage score. It compares style, vocabulary, sentence length, and coherence against extensive human and AI datasets, enabling targeted edits for academic, SEO, and publishing standards.
Free
- $5.91
ContentDetector.AI is a free tool that identifies AI-generated written text, including Chat GPT and GPT 3 content, and provides an estimated percentage score of AI generation likelihood.
Free
AI Content Detector - Trusted GPT-4 analyzes text to identify human-written versus AI-generated content. It offers document uploads, supports multiple languages, and provides percentage-based insights on originality, making it useful for educators and content creators.
Free
AI Undetect evaluates AI‑generated content and rewrites it into human‑like text in 20+ languages. It integrates with ChatGPT, Claude, and Jasper, offering manual and auto‑perfect modes, and shows unified detection results from GPTZero, Copyleaks, Turnitin, Originality AI, and more.
Paid
Detecting‑AI scans text in 50+ languages, marking AI‑generated sentences with probability scores. It integrates with Chrome, Moodle, Zapier, and offers an API, delivering up to 98% accuracy and low false‑positives while protecting user privacy.
Freemium
- $7/mo
AI Content Detector evaluates text for AI authorship, handling uploads up to 4 MB or pasted input. It returns a detection score, readability rating, and grade assessment, comparing against models such as ChatGPT, Gemini, Claude, and LLaMA. Useful for researchers, educators, and publishers to verify
Paid
- $9.99
Undetectable AI scans text and images for signatures of models like GPT‑4, Gemini, and Claude, combining multiple engine results into a probability score. It handles paraphrased content, supports 50+ languages, and offers a Chrome extension and API.
Free
- $5/mo
The AI plagiarism checker from plagiarismcheck.org uses advanced AI technology to detect AI-generated content and plagiarism, supports various file formats, and is useful in academia, SEO, and recruitment.
Freemium
- $5.99
X Detector analyzes up to 5,000 characters, giving per‑word probability scores to identify whether a passage was written by ChatGPT, Claude, Gemini, or a human. It supports over 20 languages, processes millions of texts, and encrypts data for privacy.
Freemium
AIDetector.review is an AI text detection tool that identifies AI-generated content with detailed reports and confidence scores. It offers fast, 99.2% accurate analysis for academic, publishing, recruitment, and business use cases.
Free
AI Detector identifies AI‑generated content across text, images, audio, and video, supporting common media formats. It achieves 98.9% accuracy for synthetic images and offers an API for seamless integration into KYC, fraud‑prevention, and moderation workflows.
Freemium
- $5/mo
MyDetector is a free tool that detects AI-generated text and humanizes it to ensure authenticity. It supports multiple languages, offers 99% accuracy, and refines content to match human-like quality.
Free
AI Detector Deutsch identifies whether German text is human or AI‑generated by analyzing linguistic patterns, syntax, and context. It highlights AI‑created sections, enabling rapid authenticity checks for academic work, research, and content creation.
Freemium
Checkforai is an AI tool that detects AI-generated content in written text, ensuring authenticity and helping prevent plagiarism and search engine penalization.
Free
AI Essay Checker spots AI‑generated content, grammar errors, and plagiarism in real time. It offers multilingual support, a rich text editor, and local processing for privacy, aiding students, teachers, writers, SEO pros, and legal professionals.
Freemium
BypassAI rewrites AI‑generated content to bypass detection tools like GPTZero, Turnitin, and ZeroGPT, removing watermark patterns and spam‑like language. It supports 30+ languages, preserves meaning, and improves SEO‑friendly readability for academic, editorial, and marketing use.
Subscription
- $6.99/mo
AI Voice Detector identifies AI‑generated speech with up to 99 % accuracy. It analyzes MP3, WAV, OGG, M4A, MP4, MOV files up to 10 min by segmenting audio, applying voice‑activity detection, and deep‑learning scoring. Supports multiple languages, Chrome extension, desktop app, API.
Subscription
- $24.99
GPTZero AI Detector scans documents for potential AI-generated content, providing in-depth results on AI probabilities, vocabulary analysis, and hallucination detection, as well as plagiarism checking and authorship verification capabilities.
Freemium
- $12/mo
AI Writer offers AI‑powered tools to generate articles, blogs, captions, emails, and ads. Set tone, character limits, and platforms for titles, outlines, and meta descriptions. Built‑in expand, shorten, paraphrase, summarize, grammar, keyword, and translation features streamline editing and ensure q
Free
Originality.ai evaluates text for AI generation, plagiarism, factual accuracy, readability, grammar, and SEO. The Chrome extension and web app enable on‑page checks, bulk scanning, PDF uploads, and API integration for writers and editors.
Free trial
- $12.95/mo
AHelp is an AI platform offering essay writing, paraphrasing, grammar and plagiarism checks, and AI source finding in multiple languages. It generates outlines, expands paragraphs, and validates originality, streamlining drafting and quality control.
Subscription
- $4.17/mo
Walter Writes AI enhances AI-generated content by refining its structure and tone, making it indistinguishable from human writing. It supports over 80 languages and includes a built-in detection tool to identify AI-produced text.
Free trial
Eduwriter is an AI content writer that provides unique and undetectable text for essays and content writing on demand.
Freemium
- $11/mo
Ai‑Spy analyzes MP3/WAV files to distinguish human from AI‑generated speech. It offers drag‑and‑drop uploads or link input, instant authenticity scores, word‑level breakdowns, exportable reports, and a SOC 2‑certified API for workflow integration.
Free
Aithor automates essay creation, literature reviews, and topic ideation for academic and creative writers. It provides access to 10 million verified sources, manages MLA/APA citations, offers grammar checking, paraphrasing, summarization, and tone adjustment to streamline writing.
Freemium
Lunchbreak AI scans documents with Turnitin, GPTZero and other detectors, highlights AI‑flagged sections, and offers one‑click rewriting that preserves meaning and voice. It supports academic, research, and business writing, ensuring detector compliance without loss of originality.
Freemium
Free AI Essay Writer creates structured academic essays across topics, letting users set length, tone, citation style (APA, MLA, Chicago). It generates intro, body, conclusion, references, and offers AI‑detector and plagiarism checks, aiding quick drafting for students and non‑native speakers.
Paid
AIScanner.io is a tool that detects AI-generated text from major models like GPT and Claude, providing a 0–100 authenticity score in seconds. It identifies paraphrased content and mixed samples with continuous model updates, helping educators and professionals verify content originality.
Free
AI Essay Writer is a web‑based tool that generates academic essays, outlines, and paragraph suggestions based on topic, type, tone, and citations. It includes grammar checks, AI detection, and reference formatting, aiding students and researchers.
Freemium
- $5/mo
Uncheck AI detects AI‑generated content and rewrites it to evade detection while preserving meaning, grammar, and style. Supporting over 30 languages and removing watermark phrases, its output is error‑free, plagiarism‑free, and suitable for email marketing and SEO.
Freemium
- $6.99/mo
Rewriter PRO AI converts machine‑generated text into natural, detector‑proof language with adjustable fluency (basic, intermediate, advanced). Users set tone—formal, creative, etc.—and target audiences across emails, proposals, blogs. It supports multiple languages and offers instant grammar correct
Free
AI‑Writer.com generates concise, cited answers to academic questions from 100 million open‑science papers, shows source paragraphs, offers BibTeX, supports APA/MLA/Chicago, and lets users build structured reviews via drag‑and‑drop and download them as HTML.
Subscription
- $49
Detectordeia is a sophisticated tool designed to analyze texts, distinguishing between AI-generated content and human-written material by evaluating writing patterns, structure, and style.
Free
PerfectEssayWriter.ai creates structured, plagiarism‑free essays for high‑school to professional users. Set word count, essay type, academic level, tone, and citation style. Supports 27+ languages, real‑time research prompts, auto‑citation, live editing, and undetectable output.
Subscription
Bypass AI rewrites AI‑generated text into human‑readable, undetectable content while preserving SEO keywords and style. It delivers results in seconds, offers tone customization, and includes integrated plagiarism and AI detection checks for verified originality.
Freemium
- $4.99/mo
This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.
Freemium
uPass AI rewrites AI‑generated content to lower detection scores from Turnitin, GPTZero, and Copyleaks. It offers simultaneous detection checks and human‑like rephrasing, preserving meaning while improving grammar and reducing redundancy for academic writing.
Freemium
- $12.99/mo
AI Essay Writer generates original essays in over 50 languages. Users set topic, type, length, and language; an optional undetectable mode reduces AI detection. It includes AI detection, plagiarism checking, and editing tools for personalized, compliant essays.
Subscription
- $17.98/mo
ParagraphAI offers real‑time grammar correction, one‑tap email drafting, and instant summarization of web pages and PDFs. It provides multilingual translation, customizable tone filters, a template library, and an instruction engine for repetitive tasks across mobile, desktop, and Chrome.
Free
Dechecker AI is an AI content detector that identifies text generated by models like ChatGPT, Claude, and Gemini. It provides sentence-level analysis with highlighted passages and offers rewriting suggestions to enhance originality and readability.
Free
Illuminarty is an AI tool that detects AI-generated images and texts using computer vision and NLP algorithms. It offers a browser extension and API for automated detection.
Freemium
TextAdviser delivers AI‑powered language tools: grammar checking, plagiarism detection, syntactic analysis, fast text generation, rewriting, tone humanization, summarization, and name/title creation. It supports English, Spanish, Portuguese, Italian, French, and German for writers, students, markete
Free
Write AI is an advanced writing tool that uses machine learning to replicate human-like writing and overcome writer's block, with a free trial and cancellation at any time.
Free trial
aiphotorobot.com offers an image recognition model training platform with various AI models, dimensions, subject strength, styles, and compositions, as well as a new Lora feature for faster training and image generation.
iAsk.Ai delivers instant, factual answers to natural‑language questions from authoritative web sources, and offers essay drafting, advanced grammar checks, academic summarization, PDF analysis, image generation, URL bullet‑point briefs, and one‑click grammar correction. Accessible via browser extens
Freemium
- $9.95/mo
AI Content Checker is a free browser extension that enhances web publishing by detecting errors, ensuring quality logic, and perfecting content before publication. It offers features like reviewing pages, answering specific questions, highlighting headings/links, identifying spacing issues, and open
Free trial
Detector.io is an AI detection tool that scans text to identify AI-generated passages, providing a score and highlighted segments. It includes integrated tools like an AI humanizer and plagiarism checker to help refine content for authenticity.
Free