AI Tools to Check Grammar 12 apps
Fix grammar, spelling and style mistakes in your writing.
Checking grammar means reviewing writing for errors in grammar, spelling, punctuation, and style. The best AI tools to check grammar can make that review faster and easier to repeat across messages, documents, websites, and other writing workflows. Instead of waiting for a full manual pass, AI can identify likely problems, suggest clearer wording, and sometimes explain the correction. You still need to review the suggestions, because the right edit depends on your meaning, audience, and preferred voice.
How AI helps with checking grammar
AI grammar tools typically analyze text as you type or after you paste it into an assistant. They can flag misspellings, grammar problems, punctuation issues, and style concerns, then offer a replacement or revised version. Real-time tools reduce the effort of switching between a draft and a separate checker, while chat-based tools let you ask for a focused correction or a broader rewrite.
The most useful workflow is to treat AI as a first review rather than an automatic final editor. Check each suggested change against your intended meaning, then read the complete passage for consistency, tone, and facts. Tools that add feedback, rephrasing, translation, or content-quality checks can support later passes when a basic error scan is not enough.
What to look for
Correction quality and feedback
Prioritize accurate grammar, spelling, and punctuation suggestions, especially when a tool explains why a change is recommended. Detailed feedback can help you distinguish a clear error from a stylistic preference. Use a trusted reference such as Purdue OWL's grammar guidance when you want to verify a rule or understand a disputed edit.
Speed and writing context
Choose a tool that matches where you write: real-time correction can help with quick messages, a Chrome extension can support browser-based work, and cross-app coverage can reduce copy-and-paste steps. For longer documents, a tool that can review a complete passage may be more useful than one focused only on individual words. Look for a workflow that keeps the review fast without encouraging you to accept every suggestion automatically.
Style, tone, and language support
Grammar is only one part of a polished draft. If you also need clearer phrasing, tone feedback, rewording, or translation, choose a tool that lists those capabilities. For a separate standard for clear, audience-friendly writing, compare suggestions with the U.S. government's Plain Language Guidelines.
Formats, integrations, and privacy
Consider whether you need support inside Mac apps, across websites, through a browser extension, or for an entire website. An API may matter for developers, while on-device processing may matter for sensitive drafts. The listings include examples of each approach, so match the integration to your writing environment and check how your text is handled before reviewing confidential material.
Best AI tools to check grammar
Cotypist autocompletes text across Mac apps with private, on-device AI that adapts to your writing style. Its listed focus is in-context autocomplete rather than a dedicated grammar report, so it is best suited to Mac users who want writing assistance while composing. Cotypist is listed as free.
Nova AI App combines answers, writing assistance, and planning tools across the web, mobile, and Apple Watch in a unified multi-model chat experience. Its broad writing-assistance focus makes it a flexible option for conversational review of a passage, although the listing does not describe a grammar-only checker. Nova AI App is listed as free.
Grammar Checker.cc is designed for direct proofreading: it corrects grammar, spelling, and punctuation errors and provides detailed feedback. It is a straightforward choice when you want both a cleaned-up passage and an explanation of the suggested changes. Grammar Checker.cc is listed as free.
Grammarly is an AI writing assistant that helps you write clearly, confidently, and correctly across any app or website. That broad coverage suits people who want grammar support within their usual writing workflow rather than only in a standalone checker. This listing is freemium and includes an API.
Paragraph AI combines grammar checks, plagiarism detection, and content generation in one writing assistant. It is useful when a grammar pass needs to sit alongside an originality check or help generating content. Paragraph AI is listed as free.
Wordfixerbot corrects grammar, spelling, and style in real time. Choose it when you want focused corrections as you write rather than a broader content-generation workflow. Wordfixerbot is listed as free.
FuturePerfect automatically scans your website to detect and fix spelling and grammar errors in real time. It is especially relevant for website owners or editors who need site-level checking instead of reviewing individual passages manually. FuturePerfect is listed as free.
LanguagePro improves content quality with grammar correction and translation tools. It fits multilingual workflows where you want to review correctness and work between languages in one assistant. LanguagePro is listed as free.
How to choose
Choose Grammar Checker.cc for direct corrections with detailed feedback, Grammarly for broad app or website coverage, and FixMeBot or LanguagePro for multilingual work. Typeright and Wordfixerbot suit real-time drafting, Lingually suits Chrome-based language learning, FuturePerfect suits website scanning, and Cotypist suits private, on-device Mac autocomplete. Nova AI App and Paragraph AI are better fits when grammar review is part of a broader chat or content workflow.