QuillBot vs LanguageTool: Ultimate Comparison for Writers

Whether you’re a student, content creator, or professional writer, choosing the right writing assistant can make a big difference in productivity and polish. In this post, we compare two of the most popular AI writing tools—QuillBot and LanguageTool—covering their features, pricing, strengths, weaknesses, and integrations.

QuillBot overview

QuillBot is an all-in-one writing and productivity assistant that includes Grammar Checker, Paraphraser, AI Detector, Translate, AI Chat, and more. Designed for writers needing content transformation, QuillBot offers a robust suite of features to rewrite, refine, and repurpose text

LanguageTool overview

LanguageTool offers an advanced grammar, punctuation, and spelling checker that supports over 30 languages and an English paraphraser with 10 different modes. Additionally, LanguageTool integrates seamlessly with many apps and extensions.

Key features compared

QuillBot and LanguageTool have many similar features. Both include a grammar checker and paraphraser, and both support multiple languages. However, QuillBot includes many additional tools to support the writing process from idea generation to authenticity verification.

Below, we compare some of the primary features of the two products.

Grammar checking

Both QuillBot and LanguageTool offer advanced grammar checking capabilities in multiple languages. They go beyond basic spelling and grammar corrections to provide tone and style recommendations.

Try QuillBot’s Grammar Checker

QuillBot’s Grammar Checker

LanguageTool’s Grammar Checker

Paraphrasing

QuillBot and LanguageTool both offer an advanced paraphrasing tool with multiple modes (e.g., academic, formal, and humanize). They also allow users to customize the tool’s output by selecting synonyms for words and phrases.

QuillBot’s Paraphraser additionally includes a custom paraphrasing mode and the ability to paraphrase in over 30 languages.

Try QuillBot’s Paraphraser

QuillBot’s Paraphraser

LanguageTool’s Paraphraser

Other tools

Where QuillBot really stands out is the number of tools it offers in addition to grammar checking and paraphrasing. With its AI Chat tool, you can perform the same generative AI tasks that you might use ChatGPT or Claude for.

Try QuillBot’s AI Chat

Integrations

QuillBot and LanguageTool are designed to be easy to use in many different programs and apps.

Pricing

QuillBot has a free version, which allows access to all tools and integrations except the Plagiarism Checker. QuillBot Premium allows for unlimited usage and more advanced features.

LanguageTool’s grammar checker and paraphraser can be used for free via the website, but the extensions and integrations that make the tools convenient to use can only be accessed through a paid subscription. Its paid version is cheaper than QuillBot’s but includes fewer tools and features.

Both QuillBot and LanguageTool offer team plans for businesses and organizations, which allow multiple users to access the tools’ capabilities and provide an admin dashboard.

Try QuillBot for free

LanguageTool vs QuillBot: The bottom line

For most use cases, QuillBot is the better option. It offers free apps and extensions, and both its free and paid versions provide access to a more comprehensive suite of tools than LanguageTool.

However, if you are primarily interested in grammar checking, especially for a language other than English, Spanish, German, French, Dutch, or Portuguese, then LanguageTool may suit your needs.