LanguageTool vs ProWritingAid vs HIX.AI

Explore our extensive and in-depth comparison of LanguageTool vs ProWritingAid vs HIX.AI. Get insight into what features these AI-driven writing assistants offer to find the the best copilot to help you create quality content.

 LanguageTool ProWritingAidHIX.AI
Pricing$4.99-$24.9/mo$10-$30/mo; $399/lifetime$4.99-$199.99/mo
Free Plan   
Language ModelUnspecifiedUnspecifiedGPT-3.5/4
AI Writing Tools 1 (all-in-one AI tool)120+
Supported Languages36+1 (Only English)50+
Article Rewriter   
Video to Article   
Paraphrasing Tool   
Brand Voice   
Bulk Processing   
Long-Form Article Writer   
Supported Article Types  8
Content Backed by Credible Resources    (Top Google Search Results, Google News, Amazon Product Pages, …)
SEO-friendly Content Creation   
Up-to-date Content Creation    (Backed by up-to-date information online)
ChatGPT-Like Chatbot   
Web Access   
Image Generation   
Accessibility  Accessible through web app & Chrome browser extension
Chat with PDF   
YouTube Summarizer   
Webpage Summarizer   
AI Document Editor   
Writing Modes  3 (AI Mode, Chat Mode, Power Mode)
1-Click Google Docs Export   
1-Click WordPress Export   
Chatbot Assistance   
AI Writing Templates  120
Integrated AI Availability   
Plagiarism Check   
Grammarly Integration   
All-in-One Browser Extension   
Work in Chrome and Edge   
Work in Social Media    (Twitter, Instagram, Facebook, Quora, Reddit, YouTube)
Work in Email     (Gmail)
Work in Google Docs    
Search Engine Enhancement    (Google, Yahoo Search, DuckDuckGo, Naver, Baidu)
Quick Lookup Toolbar     (Translate, grammar check, longer, shorter, explain and more)
Browser Sidebar    (HIX.AI ChatGPT sidebar, a a more versatile Bing Sidebar alternative)
Chatbot Integrated   
AI Email Writer   
Email Templates  20+
Summarize Emails   
Suggest & Write Replies   
Accessibility  Accessible through web app & browser extension
Tones of Voices  13
Supported Languages  50+
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HIX Writer

Empower your writing with 120+ AI writing tools

HIX Bypass

Bypass AI detection with 100% undetectable AI content


Create undetectable, plagiarism-free essays with accurate citations

Browser Extension

The all-in-one ChatGPT copilot: rewrite, translate, summarize, Chat with PDF anywhere

No credit card required
LanguageTool: Strengths, Weaknesses, and Performance

LanguageTool: Strengths, Weaknesses, and Performance

Tackling everyday writing dilemmas such as distinguishing between "their" and "there," or "your" and "you're," LanguageTool emerges as a valuable writing assistant. Initially developed as an open-source project in 2003, this tool steps in to prevent errors that might compromise the integrity of your text.

Supported by a team of language professionals and technical experts, with over 30 languages and an extensive user base with 2 million browser add-ons, LanguageTool offers various services, including spell-checking, grammar enhancement, and style refinement. Offering more than just error recognition, the tool leverages AI capabilities to enhance writing style, providing well-informed suggestions.


Gives complete language inclusivity to customize offerings to suit diverse user preferences

Introducing data-driven analysis techniques to optimize the effectiveness of written material

Offers a personalized dictionary feature catering to individual preferences

Critiques your writing style and linguistic precision for a high-quality written content


The tool may struggle with a thorough analysis of difficult sentence arrangements

There can be room for improvement in the precision of paraphrasing suggestions in conveying the original text’s message

Suggestions can be overly complex, potentially overshadowing the writing context

Customers are required to enroll in a premium package to open up advanced options

ProWritingAid - Review and Rephrase Content

ProWritingAid - Review and Rephrase Content

ProWritingAid is similar to Grammarly in the sense that it offers suggestions for syntax, grammatical tweaks, and clarity in your content. It also features a rephrasing tool for those rewriting existing pieces. Plus, it reports on the quality of your writing with readability reports that inform you of how well your intended audience is likely to receive the piece you have created.

It has a few versions, though it's free plan restricts you to 500 words of reporting. It is also lacking a mobile app, making it less useful for those who wish to tweak content on the go.


Catches most grammar issues

Readability reporting

Customizable grammar rules

Integrates with most word-processing softwares


500 words for the free plan is limited

A little clunkier than its competition

The HIX.AI Advantages Over LanguageTool and ProWritingAid

As the most powerful all-in-one AI writing copilot, HIX.AI assists you every step of the way, whether it is rewording, grammar checking, or generating articles from scratch, outshining LanguageTool and ProWritingAid in every aspect.

HIX AI Writer

Write any content 10x faster in 50+ languages with 120+ dedicated writing tools.


HIX Editor

HIX Chat

All-in-One ChatGPT Chrome Extension for the Web

HIX Email Writer

Try Our Powerful, All-in-one AI Writing Copiloht Today!

Try Our Powerful, All-in-one AI Writing Copilot Today!

Enhance your writing process with HIX.AI. Whether you're crafting fact-based articles, humanizing AI text, or rewriting, summarizing, and translating your content, HIX.AI provides the tools you need.

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