Fact Checker
The best 50 Fact Checker AI tools - Free & Paid
Explore 50 AI for Fact Checker
Factful offers real‑time spelling, grammar, and factuality checks with in‑line slash commands for quick edits. It tracks corrections, provides analytics, and uses web retrieval to cite up‑to‑date sources, aiding writers, researchers, and educators.
Freemium
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
Longshot AI's FactGPT feature generates user-sourced and factually accurate content for current events, opinions, product reviews, comparisons and more, with personalization options and access to citations.
Freemium
- $19/mo
This AI tool is a free online writing assistant with advanced features to enhance writing skills and prevent plagiarism.
Freemium
Web‑based grammar checker supporting 27 languages—including Tagalog and English variants—highlights spelling, grammar, punctuation errors and offers corrections. It accepts rich text up to 15,000 characters, detects GPT‑style typos, and includes an AI content detector, usable from any browser.
Free
Checkforai is an AI tool that detects AI-generated content in written text, ensuring authenticity and helping prevent plagiarism and search engine penalization.
Free
Parafact is an AI-driven fact-checking tool that evaluates text for accuracy using reliable sources. It supports various domains, provides source citations, and offers an API for developers to integrate fact-checking into their applications efficiently.
Subscription
Scribbr offers academic writing support with professional editing, plagiarism detection, citation generation across styles, AI‑powered proofreading, paraphrasing, summarizing, sentence rewriting, and a Chrome extension for in‑browser citations, helping students and researchers produce polished manus
Freemium
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
Advacheck employs an AI engine to detect machine‑generated text from models like ChatGPT, Gemini, Llama, etc., flagging AI authorship and plagiarism with <0.5% false positives. It offers daily‑updated detection, academic integrity tools, and Moodle integration.
Free
Wordvice AI provides real‑time grammar checking, paraphrasing, translation, summarization, plagiarism and AI‑content detection, plus citation generation across multiple languages. It integrates with Chrome and Word, supporting students, researchers, professionals, teams, and offers on‑demand human e
Freemium
- $8.45/mo
NoPlagio checks uploaded documents against 80 million academic articles and live web sources, supporting 129 languages. It gives similarity scores, color‑coded plagiarism types (citation, paraphrase, improper reference), source links, and protects privacy by never storing files.
Freemium
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
CorrectEnglish is an AI writing assistant delivering spelling, grammar, and style corrections on Android, iOS, and browsers. It offers contextual word suggestions, error detection, a plagiarism checker, formatting guides, readability scores, and integrates with extensions and research tools.
Freemium
- $24/mo
Check Typo is an AI‑powered spell‑checker extension that integrates into web forms, Gmail, LinkedIn, and social media drafts, supporting 100+ languages and preserving tone while providing real‑time corrections for students, professionals, and writers.
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
CiteTrue is an AI-powered citation checker that verifies academic references against scholarly databases to flag inaccuracies and fabricated sources. It enables batch validation and detailed reporting to support researchers, educators, and integrity officers in ensuring citation authenticity.
Free
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
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
QuillBot is a writing and editing tool offering features such as paraphrasing, grammar and plagiarism checks, citation generation, and content creation assistance, all accessible through a Chrome extension or online platform.
Freemium
- $33/mo
AI-based plagiarism remover rewrites duplicate text while preserving context and readability, offering modes (Word Changer, Formal, Shorten), file upload/download, 15+ languages and integrated tools for checking, paraphrasing, grammar, summarizing and citation generation and export.
Free
Quetext is an all‑in‑one writing platform offering plagiarism detection, AI content detection, real‑time grammar and spell correction, summarization, paraphrasing, and citation generation. It supports PDF, DOC, TXT files with bulk uploads for students, teachers, researchers, and creators.
Freemium
- $8/mo
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
LanguageTool is an AI grammar, spelling, and style checker supporting 30+ languages. It offers real‑time browser extensions, desktop and Word add‑ins, advanced Picky Mode, paraphrasing, and an API for developer integration.
Free
Copyleaks delivers AI text and image detection, plagiarism checking, grammar correction, and text moderation in 30+ languages. It integrates via API, LMS, browser extensions, and Google Docs, supports major LLMs, and ensures secure, compliant workflows for education and enterprise.
Free
- $13.99/mo
Thesify is an academic assistant that offers feedback on theses, dissertations, and grant proposals, evaluating strength, evidence, clarity, and rubric alignment. It provides instant citation support from 200 million references and delivers article summaries, semantic literature search, and paper di
Freemium
L21 AI Proofreader enhances written content accuracy and contextuality of live events.
Freemium
Resumecheck.net uses GPT‑4 to analyze resumes in PDF, Word, Pages, or RTF up to 20 MB. It corrects over 20 common errors, refines grammar, suggests structural changes, auto‑generates sections, cover letters, and matching emails, and exports polished PDFs.
Paid
- $7.9
Wordtune uses AI to rewrite, paraphrase, and correct English text, adjusting tone and length, offering summarization, fact‑checking, and multi‑language translation to aid students, academics, professionals, and creators, improving consistency and accuracy.
Freemium
Getsolved.ai is a comprehensive AI toolkit for text analysis and refinement. It helps students, professionals, and creators verify originality, check facts, improve grammar, and rewrite content.
Freemium
- $14.99/mo
Browser extension that analyzes news, tweets, and posts for bias, tone, and framing. Provides concise summaries, a trust score, political leanings, rhetoric breakdowns, and links to reputable references in real time.
Freemium
- $7.99/mo
The MyEssai AI tool offers instant and specific feedback to improve essay quality by analyzing grammar, structure, and content. It's free to use with various pricing plans available for more extensive feedback.
Freemium
MyPerfectWords connects students and researchers with qualified writers holding advanced degrees across 140+ disciplines. A three‑step review ensures proper structure, citations, and formatting. Each submission includes Turnitin and AI originality checks. 3‑hour urgent turnaround and 24/7 chat suppo
Paid
This AI paraphrasing tool lets users paste essays, articles, or sentences and receive a rewritten version within seconds. It preserves meaning, corrects grammar, removes duplicate phrasing, and ensures academic compliance without account creation.
Free
ConversAItions offers real‑time, audio‑driven fact‑checking during Zoom, Google Meet, or in‑person meetings. It validates spoken claims, flags verified versus questionable information, and generates concise on‑screen confirmations and a post‑meeting report for informed decision‑making.
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
ProWritingAid is an AI writing assistance tool that offers suggestions for grammar, style, and improvement with the touch of a button.
Freemium
Introducing Truebees, the first deepfakes detector designed to combat the spread of AI-generated portraits on social media platforms. Truebees helps verify the trustworthiness of images, detect deepfakes, and prevent the sharing of AI-generated images.
Freemium
Hemingway Editor analyzes text for readability, highlighting long or dense sentences, adverbs, and passive voice, suggests simpler wording, and—via Editor Plus—adds AI-assisted fixes, advanced grammar checks and tone controls for faster revision.
Free trial
ZeroGPT is a comprehensive AI tool suite offering advanced features for content detection, text refinement, and translation, including AI detection, plagiarism checking, humanization, and summarization.
Freemium
- $7.99/mo
AI Summarizer quickly condenses essays, reports, and articles into short paragraphs or bullet lists. Paste text, upload DOCX/TXT/image, or give a URL; adjust summary length or set custom styles. Supports Spanish, French, German, Portuguese, and offers private, downloadable .docx outputs.
Free
WordfixerBot rewrites input text while preserving meaning, offering tone options from casual to formal. It returns a ready‑for‑copy version, helping writers, marketers, students, and editors create clear, plagiarism‑free content.
Freemium
FCK.School Free Tools offers web based writing utilities — grammar and punctuation checkers, summarizer, paraphrase and rewrite tools — plus academic content generators (outlines, thesis statements, titles, paragraphs, conclusions) to support drafting, editing, and idea development.
Freemium
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
Gaslighting Check is an AI-powered tool that analyzes conversations to detect emotional manipulation tactics like blame shifting and memory distortion. It offers real-time insights, actionable recommendations, and a secure platform with community support and data protection compliance.
Freemium
- $9.99/mo
Resoomer summarizes web articles, PDFs, DOCX, EPUB, and plain text, extracting key points and arguments. It offers instant, editable summaries, a text editor, paraphraser, synonymizer, and word counter in multiple languages for students, researchers, writers, and professionals.
Freemium
Second Opinion is a browser extension that enables users to verify online content accuracy by highlighting text and receiving analysis from an AI system. It streamlines fact-checking on various platforms for enhanced information reliability.
Free
Trinka AI is a privacy‑first grammar and language enhancement platform for academic and technical writing. It corrects grammar, punctuation, style, provides plagiarism checks, citation formatting, and multilingual support, integrating into Word, Chrome, and other editors.
Paid
- $20/mo
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