Free AI Text Proofreader & Grammar Checker

Trusted by 1,000+ schools

Join our thriving community of teachers & students that trust Knowt.

Trusted by 1,000+ schools

Our community of students and teachers trust Knowt to create and study on.

Saves me time

This makes lesson planning so much faster for me! Definetely recommend the feedback tool.

My kids love it!

The lecture note taker tool is a game-changer. I can just send my student organized, effective study guides at the end of each class.

Great for engagement

Helped make my classroom more interactive. My students are more engaged and excited to learn!

Get this app, it’s amazing!

Never in my life have I done a review for any app but I just love knowt so much. I’ve recommended it to all my friends and they all agree that it’s a life saver.

Great for younger students too

My kids love to play the matching game in class, and it’s so easy for me to keep track of their progress when I assign it for homework.

Excellent review tool for students.

This app is very simple to use and engages students with different types of learning to reinforce the material. It’s fun and easy for them.

School blocked Quizlet.

I found Knowt after my school blocked Quizlet & it was so easy to get set up. Their team worked directly with our IT co-ord to answer all their questions.

Awesome app!

You can tell they put thought into making this perfect for teachers. There’s so many optimized features you won’t find on Quizlet or Google Classroom

Way more worth it

Knowt lets me keep track of exactly what my students need more practice on and makes lesson planning easier for me!

Catch & Fix Errors in Seconds

Our AI grammar checker helps you identify and correct spelling, punctuation, and grammar mistakes instantly.

Elevate Your Writing Quality

Use our AI proofreader to refine your writing, ensure clarity, coherence, and professional tone in every sentence.

Free AI Grammar Checker

Get instant access to our free AI grammar checker and write better in seconds.

Improve Sentence Structure

Our AI proofreading tool enhances sentence flow, removes awkward phrasing, and polishes your writing.

Write with Confidence, Faster

Knowt’s AI grammar and writing tool provides real-time suggestions to help you communicate your ideas effectively.

Cheaper than ChatGPT

Pay less & get more useful insights with an AI lesson plan generator built specifically for your classroom.

Explore Plans

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No steep learning curve

Oh you’re an explorer?

We have over 3 million resources across various exams, and subjects to refer to at any point.

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FAQWe thought you might have some questions...

What is an AI text proofreader, and how does it work?

Knowt’s AI text proofreader is an advanced tool that helps you proofread, edit, and enhance your writing. Using AI grammar checking, sentence structure analysis, and proofreading algorithms, it identifies errors, suggests improvements, and refines clarity - working as your personal AI writing assistant. The AI text proofreader acts as a grammar checker, proofreader, and writing enhancer all in one, making it ideal for students, professionals, and content creators.

How does Knowt’s text proofreader improve my writing?

The AI text proofreader instantly detects spelling, punctuation, and grammatical errors. But beyond basic corrections, it suggests syntax improvements, restructures unclear sentences, and refines tone to maintain professionally - all from the best grammar checker that’s free. Whether you need a paper editor, edits for a formal document or a passage for your class, the AI proofreading ensures your message is clear and professional.

What types of content can I proofread using Knowt’s text proofreader?

The AI text proofreader is works with a wide range of content, including academic writing such as essays and research papers, business communication such as emails and reports, creative writing such as blog posts and short stories, and personal documents including resumes, cover letters, and social media posts. All of these documents will be edited in the correct style, tone, and language to fit your specific need, proofreading and editing every last detail.

Can I use Knowt’s text proofreader rephrase sentences?

Yes, the AI proof checker and online proofreader provides alternative sentence suggestions that improve readability and flow. Just one quick AI grammar check will catch all those errors for you. Whether you need to restructure a complex sentence or adjust the tone for a formal document, the AI text proofreader offers refined alternatives that enhance clarity, redundancy, and effectiveness.

What makes this the best AI text proofreader?

Knowt’s text proofreader exceeds our competitors with its its advanced detection of grammatical errors, contextual analysis, and real-time sentence restructuring suggestions. Unlike traditional grammar checkers, it offers in-depth corrections tailored to different writing styles, including academic writing, business communication, and casual text. It ensures accuracy while maintaining readability and coherence.

Does Knowt’s text proofreader work for technical writing?

Yes, Knowt’s text proofreader is highly effective for technical writing, such as reports, manuals, and research papers. It helps maintain clarity, consistency, and proper terminology usage while ensuring grammatical accuracy. This AI proofreader and editor is a valuable tool for professionals who need to communicate complex information clearly.

How does Knowt’s text proofreader help improve readability?

Knowt’s text proofreader improves readability by analyzing sentence complexity, word choice, and structure. It provides suggestions to simplify overly complex sentences, remove redundant words, and ensure smooth transitions between ideas. This makes the text more engaging and easier to understand, especially for younger audiences.

Can Knowt’s text proofreader fix passive voice and wordiness?

Yes, Knowt’s text proofreader tool identifies and suggests revisions for passive voice, wordiness, and unclear phrasing. It helps users write concisely and effectively by providing clear, direct sentence alternatives.