Best 322 AI Grammar Checker Tools in 2025

Robust, real-time communication assistance
Generative AI for writing, rewriting, and getting ideas
Writing enhancements for grammar, tone, clarity, and team consistency
Writing assistance on desktop apps, websites, mobile apps, emails, and social media

premium Grammarly Premium offers advanced writing suggestions and checks for more in-depth writing improvement.
business Grammarly Business provides tailored solutions for teams and businesses, including centralized billing, team management, and enhanced security.
education Grammarly for Education offers writing improvement tools and resources for students and institutions.

To use Grammarly, users can download the app or browser extension on their Windows or Mac devices. Additionally, Grammarly integrates with popular apps and sites like Word, Gmail, Google Docs, LinkedIn, and more. Once installed, Grammarly provides suggestions and corrections in real-time as users write across different platforms. Users can rely on Grammarly's AI-powered writing tools to generate cover letters, emails, and other documents, maintaining their unique voice and style. With Grammarly's comprehensive writing assistance, users can write confidently and effectively.

Chat about anything with Monica
Create copywriting with over 80 templates
Compose and insert text into any web page
Explain, translate, and rephrase selected text

Chat with Monica about anything, anywhere. Let Monica help you create and insert text anywhere on the web page. You can also select text for Monica to explain, translate, and rephrase.

LanguageTool offers the following core features: 1. Grammar Checker: It checks your text for grammar mistakes and helps you find the right tone. 2. Style Checker: It provides suggestions for improving writing style, such as avoiding overused phrases and redundant words. 3. Spell Checker: It detects and corrects spelling mistakes in your text. 4. Punctuation Checker: It helps you fix punctuation errors, including missing commas and incorrect usage of dashes and hyphens. 5. Casing Checker: It corrects incorrect casing, such as capitalized names and national identities. 6. Paraphraser: It uses artificial intelligence to rephrase sentences and make them more formal, fluent, simple, or concise.

To use LanguageTool, simply visit the website or install the browser add-on for Chrome, Edge, Firefox, Safari, or Opera. Once installed, LanguageTool will automatically detect the language you are using and provide suggestions for grammar and style improvements. You can also integrate LanguageTool with your favorite office programs such as Google Docs, Microsoft Word, LibreOffice, and OpenOffice.

ChatGPT Sidebar with GPTs integration
Supports chats with links, images, PDFs, and GPTs
Integration of ChatGPT 3.5/4, Claude Instant/V2, and Gemini
One-stop AI assistant for all-in-one chatbot, AI reader, AI writer, and ChatPDF integrated image tool
Group AI Chat with GPT-3.5, GPT-4, Claude, and Bard support
Instant solutions to any question from all available bots

Simply install the Sider Chrome/Edge extension and start enjoying its features. It assists in reading, writing, chatting, translating, and more on any webpage.

Grammar Checker
Style Editor
Writing Mentor
Comprehensive Story Critiques
Suggestions for Engaging Readers
Tools for Finding Inspiration
Integration with Multiple Apps

Sign up for free in 30 seconds Review our suggestions to improve your story Publish with confidence

AI-powered suggestions to instantly improve your writing
Rewrite and rephrase sentences
Find synonyms and alternative words and phrases
Write with a specific tone or style
Stick to word limits
Expand sentences for more detail and depth

To use Wordtune, simply install the Chrome extension or add the Wordtune add-in to Microsoft Word. Once installed, you can activate Wordtune on websites like Google Docs, Gmail, LinkedIn, Facebook, Twitter, and more. As you write, Wordtune will provide AI-powered suggestions to help you improve your sentences, convey your message clearly, and find alternative words and phrases.

Summarize lengthy PDFs of over 1,000 pages in minutes.
Translate PDFs into other languages while preserving original layouts.
Clearly explain words, phrases, sentences, or paragraphs within a PDF.
Convert PDFs into mind maps effortlessly.
Upload images and chat to get answers to your questions.
Chat with AI to ask anything beyond PDFs.

To use UPDF's AI, users need to register for a UPDF account and download the app on Windows, Mac, iOS, or Android. Alternatively, users can register and access the online AI version directly without any installation.

Data integration
Workflow automation
Writing assistance
Data analysis

Users can sign up for core features for free or start a 14-day trial for premium features.

Inquiry-based student discussion platform
AI-powered writing feedback
Empower students to develop strong writing skills and curiosity

Students and educators can sign up for Packback, use its inquiry-based discussion platform, receive AI coaching, and access writing feedback to enhance their skills and academic experience.

Comprehensive AI assistant for writing, data analysis, image generation, and more
Quick summaries of videos, blog posts, essays
Code execution through data analysis

All-in-one AI assistant Free Custom GPTs, SEO boosting images, and high-demand content

Add Arvin to Chrome and open with Alt/Option + A for easy access on Twitter, LinkedIn, YouTube, and Gmail.