Free AI Topic Sentence Generator
Crafting strong, engaging topic sentences has never been easier. With our AI topic sentence generator, you can instantly create clear, compelling opening sentences for essays, blog posts, research papers, and more.
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Work with the industry-leading AI topic sentence generator
Grammarly’s free AI topic sentence generator helps you create impactful topic sentences tailored to your content type—whether it’s an essay, a research paper, a blog post, or a presentation.
Free to use
Generate topic sentences at no cost—no ads, no hidden fees.
Simple and fast
Enter your topic and get an AI-powered topic sentence in seconds.
Saves time
Skip the brainstorming—get a strong topic sentence instantly.
Engaging and clear
Ensure your writing starts with an impactful and well-structured opening.
Versatile
Generate topic sentences for essays, articles, reports, and more.
How to use Grammarly’s AI topic sentence generator
Crafting a strong topic sentence is easy with Grammarly’s AI tool. Just follow these steps:
Enter your topic and a brief description of what you want to write about.
Specify the tone and key focus of your sentence.
Get an AI-generated sentence and refine it to fit your content needs.
Find inspiration in these AI-generated topic sentence examples
Start your writing with confidence using Grammarly’s AI-generated topic sentences. Get sentences tailored to your topic—then refine them to match your style.
Prompt:
Step 1:
Generate a topic sentence for an essay about the impact of climate change.
Step 2:
Ensure the sentence is clear and informative.
Topic sentences generated by Grammarly:
Step 1:
Generate a topic sentence for an essay about the impact of climate change.
Step 2:
Ensure the sentence is clear and informative.
Topic sentences generated by Grammarly:
- Climate change is disrupting ecosystems worldwide, threatening biodiversity and the balance of natural habitats.
- Rising global temperatures are leading to more frequent and severe weather events, putting communities and infrastructure at risk.
- The economic consequences of climate change are becoming increasingly evident, affecting agriculture, health systems, and global markets.
Prompt:
Step 1:
Generate topic sentence options for a blog post about time management tips for students.
Step 2:
Make it engaging and informative.
Topic sentences generated by Grammarly:
Step 1:
Generate topic sentence options for a blog post about time management tips for students.
Step 2:
Make it engaging and informative.
Topic sentences generated by Grammarly:
- Managing your time well isn’t just about getting more done—it’s about making space for what matters most.
- Juggling school, studying, and life doesn’t have to be chaotic—these time management tips will help you stay focused and stress-free.
- Time is your most valuable resource as a student—learn how to make the most of it with simple, effective strategies.
Prompt:
Step 1:
Generate a topic sentence for an essay about the impact of climate change.
Step 2:
Ensure the sentence is clear and informative.
Topic sentences generated by Grammarly:
Step 1:
Generate a topic sentence for an essay about the impact of climate change.
Step 2:
Ensure the sentence is clear and informative.
Topic sentences generated by Grammarly:
- Climate change is disrupting ecosystems worldwide, threatening biodiversity and the balance of natural habitats.
- Rising global temperatures are leading to more frequent and severe weather events, putting communities and infrastructure at risk.
- The economic consequences of climate change are becoming increasingly evident, affecting agriculture, health systems, and global markets.
Prompt:
Step 1:
Generate topic sentence options for a blog post about time management tips for students.
Step 2:
Make it engaging and informative.
Topic sentences generated by Grammarly:
Step 1:
Generate topic sentence options for a blog post about time management tips for students.
Step 2:
Make it engaging and informative.
Topic sentences generated by Grammarly:
- Managing your time well isn’t just about getting more done—it’s about making space for what matters most.
- Juggling school, studying, and life doesn’t have to be chaotic—these time management tips will help you stay focused and stress-free.
- Time is your most valuable resource as a student—learn how to make the most of it with simple, effective strategies.
Who can use Grammarly’s AI topic sentence generator?
Grammarly’s AI topic sentence generator is perfect for anyone who wants to start their writing with strong, engaging opening sentences.
Professionals
Create compelling topic sentences for reports, presentations, and business content.
Students
Build clear and concise topic sentences for essays and assignments with ease.
Researchers
Generate impactful opening sentences for academic papers and studies.
Teachers and educators
Develop strong topic sentences for lesson plans and instructional materials.
Journalists
Write engaging introductions for news articles, features, and reports.
Copywriters
Craft compelling topic sentences for marketing copy, blog posts, and ads.
Marketers
Generate attention-grabbing opening sentences for social media, email campaigns, and web content.
Writers
Kick-start your writing with topic sentences that engage your audience.
Works where you write
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Android
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Frequently asked questions
What is a topic sentence generator?
A topic sentence generator is an AI-powered tool that helps you create strong, engaging topic sentences for essays, articles, reports, and other forms of writing. It analyzes your topic and generates a compelling sentence that effectively introduces your main idea.
How does Grammarly’s AI-powered topic sentence generator work?
Grammarly’s AI topic sentence generator reviews your topic, identifies key themes, and suggests a well-structured, engaging opening sentence. Whether you’re writing an academic paper, a blog post, or a business report, the AI topic sentence generator provides tailored sentences to help you start strong.
What is a good topic sentence example?
A good topic sentence clearly introduces the main idea of a paragraph and sets the tone for what follows. Here are three clear and effective topic sentence examples for different subjects:
- Regular exercise is essential for maintaining physical and mental health.
- Social media has significantly changed the way people communicate and form relationships.
- Time management is a critical skill that helps students stay organized and reduce stress.
How do I write my own topic sentence?
Writing a strong topic sentence starts with understanding what you want your paragraph to communicate. A good topic sentence sets the tone and direction for the ideas that follow. To craft one effectively:
- Identify the main idea of your paragraph.
- Keep it clear and concise—avoid unnecessary words or complex phrasing.
- Avoid vague or overly broad statements that don’t give a clear sense of focus.
- Make sure it connects logically to the rest of the paragraph and supports your overall argument or purpose.
What is a good topic sentence starter?
A good topic sentence starter introduces the main idea clearly and smoothly. Common starters include phrases like:
- One important reason ...
- A key factor is ...
- In today’s world ...
Does Grammarly offer other free AI writing tools?
Yes! Grammarly provides a range of AI-powered writing tools, including:
- Grammar checker – Catch and correct grammar, spelling, and punctuation errors.
- Plagiarism checker – Detect potential plagiarism and add citations.
- Cover letter generator – Quickly create professional cover letters.
- AI content detector – Identify AI-generated text in your writing.
Topic sentences and beyond: resources for stronger writing
Want to improve your topic sentences for essays, reports, or blog posts? The Grammarly blog has everything you need. Dive into our expert guides to master the art of writing strong topic sentences—and discover more tips to elevate your overall writing skills.
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