DeepL vs QuillBot

DeepL is a machine translation service from DeepL, a company based in Cologne, Germany, that grew out of the Linguee online dictionary and launched its translator in 2017. It is known for output that reads more naturally and keeps nuance better than many competitors, especially for European languages, and it supports Turkish among its 30+ languages.

Users translate text in the browser, desktop and mobile apps, or whole documents such as Word, PowerPoint and PDF files while keeping their formatting. Glossaries enforce company terminology, formality settings switch between formal and informal tone in languages that distinguish them, and DeepL Write rephrases and corrects text to improve grammar and style. DeepL Voice brings real-time speech translation to conversations and meetings. Businesses integrate the DeepL API into websites, apps, CMSs and support tools, and many localization platforms such as Crowdin, Lokalise and Weglot use DeepL as a translation engine. A free tier has character and document limits, while the per-user Individual, Team and Business plans raise character and file limits and add CAT tool integration and data security guarantees.

DeepL fits professionals, translators and companies that need high-quality drafts quickly, particularly in Europe where its German base and data handling help with compliance. Its language coverage remains narrower than Google Translate, which is better for rare languages and free large-scale use. Large language models are now a serious alternative for context-aware translation.

QuillBot is a browser-based writing toolkit best known for its AI paraphraser, which rewrites a sentence or paragraph in a chosen tone while keeping the meaning. It was started in 2017 by three University of Illinois computer science students, raised a seed round from Sierra Ventures and GSV in 2020 and was acquired in 2021 by Course Hero, now Learneo, the group that also owns LanguageTool and Scribbr.

Around the paraphraser sit a grammar checker, summarizer, AI detector, AI humanizer, plagiarism checker, citation generator, translator and an AI chat. The free plan caps paraphrasing at 125 words with two modes (Standard and Fluency) and leaves out plagiarism checks. Premium removes the word limit, unlocks the remaining modes such as Formal, Academic, Simple, Creative, Expand, Shorten and a Custom mode, and adds a monthly plagiarism allowance.

QuillBot fits students, non-native English writers and content teams who need to rephrase, shorten or tidy text quickly. It is weaker as a full writing assistant: Grammarly gives deeper style and tone feedback across apps, Wordtune is comparable for rewrites but lighter on study tools, and Jasper is built for marketing copy generation rather than rewording. Universities may also treat heavy paraphrasing as misconduct.

Buying tip: the annual Premium plan works out to about $8.33 a month versus $19.95 month to month, so it only makes sense to pay monthly for a single deadline. Team accounts are quoted per seat with volume discounts, which suits schools and content agencies.