Este site está em criação.

Quillbot

AI writing tools: paraphraser, grammar checker, AI detector, summarizer and more

Freemium Web iOS Android Mac Windows Extensão de navegador

Quillbot (earlier written QuillBot) is a set of AI tools for writing and creating. It started in 2017 as a paraphrasing tool and is a business of Learneo, Inc. (formerly Course Hero). The Paraphraser rewrites text in 9 built-in modes, such as Fluency, Formal, Academic and Humanize, plus custom modes. Other tools include a Grammar Checker, AI Detector, AI Humanizer, Plagiarism Checker, Summarizer, Translator (40+ languages), Citation Generator, AI Chat, an image generator, design templates and PDF tools.

It runs on quillbot.com in the browser, as a Chrome, Edge and Safari extension, as a Word add-in, as apps for macOS and Windows, and as a keyboard and app for iOS and Android.

Plans: Free (paraphrase up to 100 words in 2 modes, basic grammar fixes, limited AI Detector) and Premium (US$19.95 per month, US$79.95 every 6 months, or US$99.95 per year, which is US$8.33 per month). A Team Plan adds user management.

The about page states 35 million monthly active writers.

Feito para

Students and academics, professionals, business owners and job seekers, as the home page names them. The Premium page also names content creators.

Casos de uso

Rewrite text in a different tone or style
Fix grammar, spelling and punctuation
Check a text for AI-generated content and plagiarism
Summarize long articles and documents
Translate text into other languages
Create citations, slide decks and social media images

Uma alternativa a

Grammarly
Premium costs US$99.95 per year; Grammarly Pro costs US$144 per year. It also has a Summarizer and a Translator for 40+ languages.
LanguageTool
Includes an AI Detector, a Plagiarism Checker, a Summarizer and a Citation Generator, and has apps for iOS and Android.
Jasper
Has a Free plan; Jasper has only a 7-day trial of Pro, which costs $59 per month billed yearly.

Alternativas a Quillbot 3

Escrita e Conteúdo

Grammarly

AI writing assistant that checks, rewrites and drafts text in apps and websites

Freemium Web iOS Android Mac Windows Extensão de navegador API / CLI

Offers REST APIs for Enterprise customers, plus style guides and brand tones for teams; Quillbot lists no public API.

Escrita e Conteúdo

Jasper

AI content platform with marketing agents for on-brand text and images

Pago Web Extensão de navegador API / CLI

Stores Brand Voice, Audiences and company Knowledge in Jasper IQ so outputs follow your brand, and offers an API and an MCP server; Quillbot lists no public API.