Best grammar checker AI tools

RewriteWise is an AI-powered Telegram bot designed for non-native speakers to enhance their social media presence. It offers advanced proofreading, rewriting for native-level fluency, and content optimization. The tool corrects grammar, spelling, and punctuation, refines tone and readability, and suggests keywords to maximize engagement and growth across multiple languages.

Compose AI is an AI-powered writing assistant and Chrome extension that accelerates your writing process. It offers intelligent autocompletion, text generation, and rephrasing capabilities across all your favorite sites, from emails to documents. By learning your personal writing style, it helps you write faster and more effectively, saving up to 40% of your time.

LanguagePro is a versatile AI power assistant designed to enhance daily work and study. It integrates advanced GPT capabilities directly into Siri, offering powerful features like AI writing, translation, grammar correction, voice chat, and interactive conversations with AI characters.

ZeroGPT is an advanced AI content detector and a comprehensive writing toolkit. It accurately identifies text generated by models like ChatGPT, GPT-5, and Gemini. The platform also offers a suite of tools including a plagiarism checker, paraphraser, summarizer, grammar check, and more to enhance writing quality and ensure originality.

Rephrasely is a comprehensive AI-powered writing assistant that offers a suite of tools to enhance your writing process. It features a powerful paraphrasing tool with over 18 modes, a content composer that generates text from keywords, a plagiarism checker supporting 50+ languages, and an automatic citation generator. Supporting over 100 languages, Rephrasely is designed for students, writers, and professionals to improve clarity, overcome writer's block, and ensure originality.

NeuroSpell is a universal auto-corrector powered by deep learning. It goes beyond traditional spell checking to correct complex grammar, punctuation, and stylistic errors in over 30 languages. Ideal for writers, developers, and businesses seeking flawless text.

Sentencechanger is a comprehensive suite of free AI-powered text processing tools designed to enhance writing quality. It offers functionalities like sentence expansion, simplification, academic rewriting, text humanization, and grammar correction to help writers, students, and marketers produce clearer, smarter, and more effective content.

Type In is an AI-powered writing assistant designed to streamline content creation. It helps users generate SEO-optimized, plagiarism-free articles, blogs, emails, and more. Key features include real-time grammar checks, multilingual support, various writing styles and tones, and a suite of over 20 content templates. Available as a web app and Chrome extension, it caters to marketers, students, and business professionals seeking to enhance productivity and writing quality.

Shift is a system-wide AI assistant for macOS that enhances your workflow by allowing you to edit text and code anywhere with a simple keyboard shortcut. Just highlight text, double-tap Shift, and let the AI rewrite, debug, translate, or rephrase it instantly within any application.

FotoAI is an all-in-one custom keyboard app for iOS and Android, powered by ChatGPT. It enhances your typing experience with AI-driven chat, writing assistance, grammar checks, and translation. Express yourself with over 1,485 customizable themes, a DIY theme creator, 985+ emojis, GIFs, and unique stickers. It's a comprehensive tool for smarter, more personalized, and fun communication.

Write Brain is an AI-powered Chrome extension that serves as a comprehensive writing assistant. It helps users fix grammar, improve clarity, enhance writing style with descriptive language, translate text instantly, and add relevant emojis, working seamlessly across websites like Gmail, Facebook, and Twitter.

writeasily is an AI-powered writing assistant designed to help users create high-quality, engaging, and SEO-optimized content effortlessly. It offers a suite of tools for content generation, paraphrasing, grammar checking, and tone adjustment, catering to marketers, writers, students, and businesses to enhance productivity and overcome writer's block.

prowriting is an AI-powered writing assistant designed to enhance your writing. It provides real-time feedback on grammar, style, tone, and clarity. Ideal for students, professionals, and content creators, it helps you craft clear, compelling, and error-free text, boosting your communication effectiveness and confidence.

QuillBot is a comprehensive AI-powered writing platform designed to enhance writing quality and productivity. It offers a suite of tools including a state-of-the-art paraphraser, grammar checker, summarizer, plagiarism checker, and citation generator. Ideal for students, professionals, and content creators, QuillBot helps users articulate their ideas clearly, confidently, and efficiently, ensuring every piece of writing is polished and professional.

GigaFaze is an all-in-one AI content toolkit designed to enhance productivity. It offers a comprehensive suite of tools including AI content detection, text humanization, content generation, summarization, grammar checking, translation, and AI image creation, all powered by leading LLMs like OpenAI, Claude, and Perplexity.

SafeSpelling is an AI-powered writing assistant designed to eliminate spelling, grammar, and punctuation errors. It helps users enhance their writing clarity, style, and professionalism. Ideal for students, professionals, and writers who want to produce flawless text with confidence.

Chatgpt Services offers a suite of AI-powered Gmail add-ons, including AI Mail Assistant and AI Label Assistant. Powered by GPT-4o, it boosts your email productivity by generating smart responses, summarizing threads, translating messages in 13 languages, improving grammar, and automating email labeling and organization. Streamline your workflow and enhance communication directly within Gmail.

ChatGPT Writer is a powerful AI browser extension that integrates seamlessly into any website. Powered by models like GPT-4.1, Claude, and Gemini, it helps you write emails, fix grammar, translate text, summarize content, and more, directly within your workflow, eliminating the need to switch tabs.

Ventrilo is a context-aware AI writing assistant that integrates directly into your browser. It provides intelligent autocomplete, sentence rewriting, and a chat sidebar that understands your open tabs and documents. Access top AI models like GPT-4, Claude, and Gemini to enhance your writing, research, and overall productivity across any website or web app.

Wordvice AI is a comprehensive AI-powered writing assistant designed for academics, students, and professionals. It offers a suite of tools including a proofreader, paraphraser, summarizer, translator, and plagiarism checker to enhance writing clarity, accuracy, and style. Backed by a team with expertise in professional editing, Wordvice AI helps users produce polished, publication-ready documents.

EmailWhisperer is an AI-powered Chrome extension for Gmail and Outlook that helps you write emails faster. It offers features like rephrasing, spell-checking, tone adjustment, and AI training to personalize your communication and improve productivity.

Paraphraser.io is a comprehensive AI-powered writing suite designed to enhance text quality. It offers a multi-mode paraphrasing tool, a plagiarism checker, a grammar corrector, a text summarizer, and an AI humanizer. Ideal for students, writers, and professionals, it helps create unique, fluent, and error-free content for any purpose, from academic papers to social media posts.

ParagraphAI is a versatile AI writing assistant designed to enhance your writing across all platforms. It offers one-tap grammar correction, instant email replies, and content generation in your unique voice. With features like real-time editing, multi-language translation, and AI humanization, it helps you create flawless, natural-sounding text for professional reports, casual messages, and everything in between, saving you time and effort.

LanguageTool is an AI-powered multilingual writing assistant that checks for grammar, spelling, and style errors. It offers advanced suggestions, a paraphrasing tool, and integrates seamlessly with browsers, office suites, and desktop apps to improve your writing everywhere.