QuillBot vs LanguageTool: Comparison & Features
Choosing the perfect writing assistant can have a major impact on your productivity and writing quality, whether you’re a student, professional, or content creator. In this post, we evaluate two of the most popular AI writing tools, QuillBot and LanguageTool. We cover their features, pricing, pros and cons, and integrations so that you can make an informed decision.
Overview: QuillBot
QuillBot is an all-in-one writing and productivity assistant offering various popular tools such as Paraphraser, Grammar Checker, AI Detector, AI Chat, Translate, and more. QuillBot is a powerful tool for writers who want to transform their content through refining, rewriting, and repurposing their text.
Overview: LanguageTool
LanguageTool is primarily an advanced grammar, punctuation, and spelling checker that supports over 30 languages. Additionally, it offers an English paraphraser with 10 different modes. LanguageTool is developer-friendly and integrates seamlessly with many apps and extensions.
Key feature comparison
Both LanguageTool and QuillBot are multilingual tools that provide grammar checking and paraphrasing. However, QuillBot also includes other tools that support writers from the beginning to the end of the writing process.
Below, we look at the primary features of the two products in more detail.
Grammar checker
Both QuillBot and LanguageTool go beyond basic spelling and grammar correction by providing style and tone suggestions. They are multilingual tools and perfect for writers who switch between languages.
| Feature | QuillBot | LanguageTool |
|---|---|---|
| Advanced grammar, punctuation, and spell checking | ||
| One-click correction | ||
| Style recommendations | ||
| Word choice suggestions | ||
| Text statistics | ||
| Personal dictionary and style guide | ||
| Picky mode | ||
| Languages | 6 (plus dialects) | 30+ |
Try QuillBot’s Grammar Checker

QuillBot’s Grammar Checker

LanguageTool’s Grammar Checker
Paraphraser
QuillBot and LanguageTool allow users to paraphrase in multiple modes (e.g., humanize, academic, and fluent). They also allow users to customize the paraphrased output by choosing alternative synonyms for words and phrases.
QuillBot’s Paraphraser supports over 30 languages and provides a custom paraphrasing mode.
| Feature | QuillBot | LanguageTool |
|---|---|---|
| Unlimited paraphrasing | ||
| Paraphrasing modes | 10 | 10 |
| Synonyms suggestions | ||
| Custom paraphrasing mode | ||
| Humanize paraphrasing mode | ||
| Languages | 30+ | English |

QuillBot’s Paraphraser

LanguageTool’s Paraphraser
Additional tools
Where QuillBot shines is the variety of additional tools it offers. Users can prompt QuillBot’s AI Chat to perform the same generative AI tasks as ChatGPT or Claude.
| Feature | QuillBot | LanguageTool |
|---|---|---|
| AI content detector | ||
| Plagiarism checker | ||
| AI Chat | ||
| Citation generator | ||
| Translator | ||
| Summarizer | ||
| Speech to text |
Integrations
QuillBot and LanguageTool are designed to work wherever you write with their multiple apps and extensions.
| App/Extension | QuillBot | LanguageTool |
|---|---|---|
| Google Chrome | ||
| Microsoft Edge | ||
| Mozilla Firefox | ||
| Safari | ||
| Windows | ||
| macOS | ||
| iOS | ||
| Microsoft Word | ||
| Overleaf | ||
| LibreOffice | ||
| Obsidian |
Pricing
QuillBot’s free plan includes access to all tools except the Plagiarism Checker. Users can also choose a Premium plan to get unlimited usage and more advanced features.
LanguageTool’s paraphraser and grammar checker are accessible for free on the website. In order to access the extensions and integrations that make the tools convenient, users must sign up for a paid subscription. LanguageTool’s paid version costs less than QuillBot’s but includes fewer tools and features.
QuillBot and LanguageTool users can sign up for team plans, which are designed to help businesses and organizations use the tools more effectively.
| Plan | QuillBot | LanguageTool |
|---|---|---|
| Free | Only web-based tools, not extensions | |
| Premium | $8.33/month, billed annually | $5.83/month, billed annually |
| Team | From $5.83/user/month, billed annually | From $5.24/user/month, billed annually |
QuillBot vs LanguageTool: Which option is right for you?
For most users, QuillBot is the better choice. Both its free and paid plans provide access to a larger suite of tools than LanguageTool.
But, if you are looking mainly for a grammar checker, especially for a language other than English, Spanish, German, French, Dutch, or Portuguese, then LanguageTool may fit the bill.
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Scribbr. (2025, August 26). QuillBot vs LanguageTool: Comparison & Features. Scribbr. Retrieved July 8, 2026, from https://www.scribbr.com/ai-tools/quillbot-vs-languagetool/

