Compare: AI Grammar Checker & Paraphraser – LanguageTool vs ProWritingAid: Grammar Checker & Paraphrasing Tool

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Metric	AI Grammar Checker & Paraphraser – LanguageTool	ProWritingAid: Grammar Checker & Paraphrasing Tool
User count	2,000,000	200,000
Average rating	4.67	4.82
Rating count	12,522	7,018
Last updated	2026-04-30	2026-07-08
Size	14.97 MB	43.00 MB
Version	11.0.0	2.8.24339

Short description	Instantly improve your writing with LanguageTool's grammar checker and paraphraser. 25+ languages, no registration required, privacy-first.	Boost your writing with ProWritingAid—advanced grammar checking, paraphrasing, and 25+ writing reports for clear, engaging content across major apps.
Full summary	AI Grammar Checker & Paraphraser by LanguageTool analyzes your text as you type, catching grammar, punctuation, and style issues that go beyond a simple spell check. It supports 25+ languages, offers synonym replacements to reduce repetition, concise rewrites, and formal alternatives, and can distinguish American from British English. It works across most sites, including Gmail, Twitter, and LinkedIn, with a personal dictionary to learn your preferred terms. Privacy-first and cross-platform: By default, your text is checked by securely sending it to languagetool.org with encryption. No signup is required, and your IP address isn’t stored. This extension delivers a full-feature grammar checker and paraphraser to help you write clearly and confidently across multiple languages.	ProWritingAid is a comprehensive self-editing Chrome extension designed to improve your writing confidence and quality instantly. Featuring a robust grammar checker, paraphrasing tool, and over 25 detailed writing reports, it helps you eliminate errors while enhancing style, readability, and engagement. Seamlessly integrate ProWritingAid with Google Docs, Notion, and more, and personalize your experience through custom dictionaries and style guides. Trusted by over 3 million writers, this tool ensures your text remains private and secure as you refine your work effortlessly. Whether you're drafting stories or business documents, ProWritingAid offers the support you need to craft polished, memorable writing.