AI Grammar Checker -
Write with Confidence and Clarity
Trinka helps you improve your writing through advanced grammar checks, refining grammar, punctuation, and overall clarity at every stage.
Advanced Grammar
Fix complex grammar issues to make your writing more accurate and clear.
Sentence Structure
Structure sentences correctly for easy understanding.
Word
Choice
Express your ideas clearly with the right words for the context.
US/UK
Style
Adapt your writing to US or UK English, based on your audience.
Usage &
Style
Improve tone and phrasing for more polished, professional writing.
Advanced
Spelling
Catch spelling mistakes with contextual checks that understand your content.
Why Writers Value Our Grammar Checker Tool
Trinka has allowed me to improve the articles I have published. In addition to giving me suggestions for journals according to my research.
Hugo Alberto Rivera Rodriguez
Assitant Professor, Universidad del Rosario, Colombia
The platform has helped me a lot not only with grammar, but also with the cohesion and coherence of my texts. The plagiarism checking and reference checking features are really good.
Raquel Rodrigues
PhD student, Universidade Federal de Minas Gerais, Brazil
I used Trinka for writing and checking grammar in Iran. Trinka helped me improve the writing. It also helped me to find and correct grammatical errors faster. The use of Trinka was a good experience.
Dr. Maryam Razmgir
Associate Professor - Iran University of Medical Sciences Tehran, Iran
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Editing Modes to Suit Your Writing Needs
Power Mode
Corrects advanced grammar and technical spelling mistakes, and provides language enhancements to bring clarity and fluency to your writing.
In recent years, air pollutionspollutionarehas becomemore and moreincreasingly serious withbecause ofthe development ofadvances in technology and industry.
Lite Mode
Focuses on correcting basic grammar, spelling, and punctuation mistakes to keep your writing accurate.
In recent years, air pollutionspollutionarehas become more and more serious with the development of technology and industry.
Specializes in Academic and Technical Writing
Trinka identifies complex grammar issues, tone inconsistencies, and style concerns specific to academic and technical writing—helping you meet the standard of writing with ease that other grammar checkers don't!
Free Online Grammar Checker
Trinka is an AI-powered grammar checker and language enhancement tool designed for academic and research writing. It goes beyond basic grammar correction by helping improve vocabulary, tone, syntax, and overall writing clarity.
Trinka offers contextual spelling corrections and advanced grammar checks to help you refine your writing efficiently. With real-time suggestions, it supports professionals and researchers in producing formal, clear, and precise content.
Trinka's AI grammar checker is trained on millions of academic papers and journal articles, Trinka provides subject-specific suggestions across disciplines such as medicine, life sciences, physical sciences, engineering, humanities, business, and the arts.
Who Can Benefit From This Grammar Checker?
Trinka is perfect for anyone wanting to enhance their English writing skills. Our free grammar checker is trusted by academics, copywriters, marketers, product teams, bloggers, and more.
Researchers
Trinka supports academics in refining research papers, journal articles, and dissertations—ensuring clarity, accuracy, and adherence to formal writing standards.
Professionals
From reports and emails to presentations, Trinka helps professionals create polished and well-structured documents.
Students
Ideal for essays, assignments, and academic writing, Trinka helps students improve grammar, clarity, and flow.
Writers of Various Content
Whether you're drafting a personal statement, cover letter, blog, or social media post, Trinka helps communicate your ideas clearly and effectively.
Make Your Writing More Effective with Trinka’s Grammar Checker Tool
Trinka’s AI-powered grammar checker reviews your writing for tone, sentence structure, word choice, and readability—offering a more complete improvement than basic grammar tools.
Streamline your writing process with a tool that combines grammar, spelling, and punctuation checks in one platform.
Go beyond grammar corrections to make sure your writing is clear, consistent, and easy to read.
Learn Grammar with Trinka’s Grammar Checker Tool
Trinka’s grammar checker helps you understand your mistakes—not just fix them. Each suggestion includes a brief explanation, giving you the opportunity to improve your writing skills over time.
You also receive an overall language quality score to track your writing improvement.
For students, Trinka is a useful tool to develop effective writing habits and gain a deeper understanding of grammar and style.
Trinka’s Grammar Checker FAQ
Grammar Checker
In order to check the grammatical correctness of a sentence, simply paste it in Trinka's spelling and grammar checker. Trinka will thoroughly check the sentence for punctuation, grammar, and vocabulary mistakes.
Absolutely. Every suggestion includes a brief explanation, helping you learn grammar rules and improve your writing over time.
Trinka is powered by advanced Natural Language Processing (NLP) trained on millions of documents in academic, technical, and formal domains. It applies handcrafted grammar rules and deep learning to improve your writing holistically.
Yes. Trinka spelling and grammar checker can be accessed freely on this page only up to 500 words, but with Trinka’s free plan you can check up to 20,000 words/month. It's available via the website, browser extension, and Word add-in.
Yes. Trinka enhances grammar, sentence structure, formality, tone, and vocabulary to suit your audience—ideal for everything from essays to emails and reports.
Yes. In Trinka's free grammar checker, there is an inbuilt feature known as Consistency Checker. It identifies 5 variations of inconsistencies in a single click.
Trinka is designed for various types of academic and technical writing, including research papers, theses, dissertations, essays, reports, and journal manuscripts.
Yes, Trinka’s grammar checker can correct punctuation and improve the quality of your content.
Plug-ins and Add-ins
Trinka works on all web browsers and offers browser plug-ins (Chrome, Firefox, Safari, Edge) and a Microsoft Word add-in (for Premium users). You can write anywhere with consistent grammar checks.
Yes. Install the Trinka browser plug-in to check grammar on social media, emails, and any text input fields online—perfect for formal communication and social writing.
Install Trinka's MS Word add-in to get corrections in real time. Moreover, the Trinka Proofread File feature in the add-in can automatically edit your MS Word document in track changes, which you can then download from Word's side panel and finalize. Become a Premium member to use this powerful tech to make your writing clear and confident.
Trinka grammar checker offers an add-in for MS word users, Trinka also has an proofread file feature where your document is automatically checked for grammar errors in seconds, and you get all the suggestions in track changes.
Trinka's online grammar checker requires an active online connection to provide real-time suggestions. However, users can now access the offline grammar checker through the Trinka Windows desktop app.
Yes. Trinka Enterprise solution offers flexible integration via Trinka JS and API—perfect for embedding grammar checking into websites, platforms, or internal tools.
Common Questions
Trinka offers both free and premium plans. The Basic (free) plan allows users to check up to 20,000 words per month, while the Premium plan provides unlimited access to advanced features like consistency checks, citation suggestions, and personalized writing enhancements.
We tested Trinka against top grammar checkers using 5,778 words across five academic domains. Trinka outperformed others in accuracy, style preferences, conciseness, and contextual spelling. For a detailed comparison, check out our comparison whitepaper.
No. Trinka uses its own proprietary AI and NLP technology built specifically for editing academic, technical, and formal content. Your content is never labeled as AI-generated.
Unlike generic tools, Trinka is tailored for complex writing. Its free plan includes features many premium tools don’t offer, while the premium version adds advanced checks ideal for formal documents, reports, proposals, and more.
Trinka can fix thousands of grammar, spelling, and tone issues, making it a great tool for most writers. However, if your writing has complex errors or unclear meaning, a human proofreader may still be needed.
For users who can write clear and logical sentences, Trinka can handle the rest—grammar, tone, word choice, and more.
Yes, Trinka is great for students, especially for writing essays, research papers, and assignments. It helps improve grammar, clarity, and formal tone.
Students can also get a 20% discount on the Premium plan—just email support@trinka.ai to claim it.
Yes, Trinka currently supports English and Spanish. We’re working on adding more languages in the future—stay tuned for updates!
Yes, Trinka makes it easy to add real-time grammar and spell checking to any online text editor. With just a few steps, you can integrate our tool and start checking grammar instantly.