Free AI Grammar Checker no sign-up required

Get an AI score, sentence-level highlights, and refined AI detection insights. Our tool can paraphrase any kind of text, making it useful for a variety of projects. Choose the style you’d like to paraphrase your text in. Or you can upload the document that you would like to paraphrase. Start by either typing or pasting the text you want to paraphrase into the input box on the left. Simply enter your text into the input box, and our AI will work with you to create the best paraphrase. So you’re writing gets better every time you use Quillbot’s Grammar Checker free of charge. Our Grammar Checker doubles as a spell check tool to ensure that every part of every sentence you write is correct.

A plagiarism detector checks if content was copied from somewhere else. Build trust with readers, reduce AI skepticism, and keep proof of authenticity one click away. Always interpret results in light of your own knowledge.When the AI Detector tool identifies sections of text as likely AI-written, it provides explainers with insights into why that text was flagged. The tool assigns a percentage score from 0 to 100% indicating the likelihood that the text was generated by AI. But most AI checkers can’t differentiate between text that’s been entirely generated with AI tools and text that’s been refined using AI assistance. To improve accuracy , make sure it's at least 80 words long. Keep your text secure, so your sensitive or unpublished content stays protected. AI content detection is used by educators, editors, SEO professionals, and businesses to make sure content is original.

Quillbot's online paraphrasing tool uses AI to find new ways to phrase sentences without changing their meaning or context. Grammar is the set of rules that shape how we organize words to make meaningful sentences. “Whenever I struggle to find the perfect phrasing, I use their paraphrasing tool, allowing me to generate unique sentences while maintaining the same context and meaning.” Communicate with multiple clients and increase content publishing, without sacrificing quality It considers the context—the subject and meaning of a sentence—along with the spelling and meaning of a word. Some spell checkers don’t help you catch spelling errors caused by typos or misused words, but Quillbot’s spell check does because it looks at more than just each word individually.

Quillbot’s free AI detector is designed to analyze text generated by modern large language models (LLMs). It gives me accurate results that no other ai checker gives, I myself spent time on writing my coursework just for an AI checker like Zerogpt to tell me its at least 60 percent AI? I spend every day drafting, creating, and editing content. Review campaign copy, blogs, and product content for AI patterns to maintain audience trust Review assignments and essays for AI-generated writing to support academic integrity Using both tools together helps evaluate authenticity and originality. A piece of writing can be original but AI-generated, or copied from another source without involving AI.

For example, you can use Quillbot’s Humanizer tool to rewrite your flagged text sound more natural and align it with your own voice or use the Paraphraser to rewrite sentences to sound more original. With typos, you may end up with words that are spelled right but don’t make sense in the sentences they appear in. While Quillbot’s AI detector focuses on identifying common AI writing patterns within text, it also connects directly with Quillbot’s other writing tools to help refine your flagged content. AI detectors evaluate common indicators of AI-generated writing such as how predictable the text is, variation in sentence structure, and repetitiveness. Select "Detect AI" to receive a score from 0–100% on how likely your text was AI-generated, then read the explainer card to understand why it was flagged. Avoid using patterns and commonly AI-generated phrases to help you avoid being flagged in the future.

Well1 /wɛl/USA pronunciation adv., adj., comparative bet•ter, superlative best, interj. Best /bɛst/USA pronunciation adj., adv., superlative form of well. Ⓘ One or more forum threads is an exact match of your searched term Drop a Letter Quiz August 2026 Drop a letter from a word to make a totally diffe… Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Examples are automatically compiled from online sources to show current usage.

Quillbot’s Paraphraser helps you write better, faster, and smarter

Our AI detector is trained to detect content generated by GPT-5, Gemini, Claude, cowboy spins live tables Llama, and more. Whether you’re writing for work or for class, our product will improve your fluency and enhance the vocabulary, tone, and style of your writing. Your words matter, and our paraphrasing tool helps you find the right ones. Paraphrase, check grammar, analyze tone, improve fluency, and more. With AI-powered insights into clarity, engagement, and readability, you can track your progress over time and continuously refine your writing skills. Yes, Grammar Checker also works as a punctuation checker, identifying and fixing misplaced commas, missing semicolons, and more, so your sentences are always clear and polished.

Feet” and “feat” sound the same but have different meanings. This quick guide explains meaning, tone and usage clearly. The highest quality to be found in a given activity or category of things The most excellent, pleasing, or skilled quality or condition For example, the superlative of ' well-known' is 'best-known'. Best is used to form the superlative of compound adjectives beginning with ' good' and ' well'. The best is used to refer to things of the highest quality or standard.