Quillbot AI

Quillbot is an AI writing platform built around a paraphrasing tool, alongside a wider suite of writing, grammar, and content tools used for editing and creating text. The Paraphraser rewrites sentences and passages in different tones and styles, and is joined by a Grammar Checker, an AI Humanizer that rewords AI-generated text to read more naturally, a Summarizer that condenses long text, and a Translator. Additional tools cover originality and academic work, including an AI Detector, an AI Image Detector, a Plagiarism Checker, and a Citation Generator that formats references in APA, MLA, and Chicago style. Quillbot also includes an AI Chat assistant for brainstorming and answering questions, plus a Cover Letter Generator and Social Media Post Writer for job seekers and marketers.

Beyond text tools, Quillbot has expanded into visual and document tools, including an AI Image Generator, a Presentation Creator, a Background Remover, an AI Image Editor, and a set of PDF tools such as ChatPDF and merge, split, rotate, and page-extraction utilities, along with file converters between PDF, Word, Excel, and PowerPoint formats. The platform is used by students, academics, business owners, job seekers, and other professionals, and is accessible through browser extensions for Chrome, Edge, and Safari, native apps for iOS, Android, macOS, and Windows, and an add-in for Microsoft Word. A free plan covers basic use with daily and word-count limits, while the paid Premium plan removes most limits and adds features like unlimited paraphrasing, expanded language support, and a monthly plagiarism-check allowance.