Best Free AI Proofreading tools

Originality.ai is an AI content detector and plagiarism checker for writers, publishers, educators, and teams.

Decopy AI is an all-in-one writing and study workspace for summarizing, rewriting, translating, detecting AI content, and checking originality.

AnyGen is an AI work platform for creating, refining, and verifying polished documents and presentations.

An AI paraphrasing tool that rewrites text in multiple modes while preserving meaning and improving clarity.

PlagiarismCheck.org is an online plagiarism and AI-content detector for checking originality, authorship, and similarity in uploaded text or files.

Hemingway Editor helps you write more clearly by highlighting complex sentences, passive voice, adverbs, and grammar issues.

WriteHuman is an AI humanizer that rewrites AI-generated text into more natural, human-sounding prose and includes detector checks.

Wordtune is an AI writing assistant for rewriting, proofreading, translation, and summarization in English.

Paraphraser.io is an AI paraphrasing tool that rewrites text while preserving the original meaning.

Smodin is an AI writing platform with humanizing, detection, plagiarism checking, and rewriting tools for students and professionals.

GPTinf is an AI humanizer, detector, and plagiarism checker for refining text, checking authenticity, and improving readability in one workspace.

Ace Essay is an AI essay platform for humanizing text, detecting AI traces, checking plagiarism, and suggesting revisions.

Free online AI text humanizer that rewrites generated content to sound more natural and human-like.

Bartleby is a homework help and textbook solutions platform with step-by-step answers, writing tools, and 24/7 expert support.

Aithor is an AI essay writing assistant that helps users build structures, draft content, check originality, and format citations.

Paperpal is an AI academic writing assistant that helps students and researchers write, edit, cite, and check manuscripts across popular writing tools.

Nova is a multi-model AI chatbot app for chatting, writing, homework help, proofreading, and travel advice across web and mobile.

ProWritingAid is a writing assistant that helps authors and other writers improve grammar, style, clarity, and storytelling.

Superhuman is an AI-powered productivity platform for email, docs, and cross-app assistance that works inside the tools you already use.

Scribbr provides academic writing tools and services for proofreading, plagiarism checking, citations, and AI writing support.

LanguageTool is an AI-based grammar checker and writing assistant that helps correct spelling, grammar, punctuation, style, and paraphrasing.

GPTZero is an AI content detector and writing analysis platform for identifying AI-generated text, plagiarism, and authorship signals.

Sudowrite is an AI writing partner for fiction writers, offering story planning, drafting, rewriting, feedback, and brainstorming tools.

Quillbot is an AI writing platform for paraphrasing, grammar checking, summarizing, and creating polished content across web and browser apps.

Grammarly is an AI writing assistant that helps users check grammar, improve tone, rewrite text, and generate content.