Best Writing Extensions for Chrome 2026 — Top 10 Grammar & Style Tools
Whether you are drafting emails, writing reports, or publishing blog posts, a good writing extension can catch errors you would never notice on your own. We tested dozens of Chrome writing tools and narrowed the field to the 10 that actually deliver. Here is how they compare.
Quick Comparison Table
| Extension | Best For | Price | Rating | L1-Aware | AI Humanize |
|---|---|---|---|---|---|
| Grammarly | Overall grammar | $12/mo | 4.7 | No | No |
| BeLikeNative | Non-native speakers | $4/mo | 4.6 | Yes | Yes |
| LanguageTool | Free option | Free / $5/mo | 4.6 | No | No |
| ProWritingAid | Long-form writing | $10/mo | 4.5 | No | No |
| Hemingway Editor | Readability | Free | 4.4 | No | No |
| Wordtune | Rephrasing | $10/mo | 4.5 | No | No |
| QuillBot | Paraphrasing | $10/mo | 4.4 | No | No |
| Readable | Content teams | $8/mo | 4.3 | No | No |
| Writefull | Academic writing | $16/mo | 4.5 | No | No |
| Just Not Sorry | Confidence building | Free | 4.2 | No | No |
L1-Aware means the tool detects your native language and adjusts corrections to address interference patterns specific to that language. AI Humanize means the tool can rewrite AI-generated text to sound more natural.
1. Grammarly — Best Overall Grammar Checker
With over 30 million users, Grammarly is the most widely adopted writing assistant on the market. It catches spelling, grammar, and punctuation errors in real time across virtually every text field in Chrome, from Gmail compose windows to Google Docs to social media comment boxes.
The premium tier adds tone detection, clarity suggestions, and plagiarism checking. Grammarly Business includes team analytics and a style guide feature. The free tier is surprisingly capable for basic grammar and spelling.
Best for: General-purpose grammar checking across all writing contexts.
Price: Free tier available. Premium at $12/mo (billed annually). Business at $15/mo per member.
Chrome Web Store rating: 4.7 out of 5 stars.
Key limitation: Grammarly treats all English writers the same. It does not adapt corrections based on your native language, which means non-native speakers often receive generic suggestions that miss the specific patterns caused by their L1 interference. For example, a Korean speaker and a Spanish speaker make very different grammar mistakes, but Grammarly handles both identically.
2. BeLikeNative — Best for Non-Native English Speakers
BeLikeNative takes a fundamentally different approach to grammar correction. Instead of applying one-size-fits-all rules, it detects your native language and tailors corrections to the specific errors that speakers of your L1 tend to make. This matters because a Japanese speaker struggles with articles and plurals, while a French speaker tends to misplace adverbs and confuse false cognates. BeLikeNative understands these patterns across 80+ source languages.
Beyond grammar, BeLikeNative includes an AI humanization feature powered by Claude Sonnet 4.6. If you have drafted text with an AI tool or if your writing sounds stilted, the humanizer rewrites it to sound more natural while preserving your meaning. With 10,000+ users and 296 reviews, it has built a strong following among ESL writers, international students, and professionals working in English as a second language.
Read our full BeLikeNative review for a detailed look at the L1-aware correction system and humanization features.
Best for: Non-native English speakers who want corrections that address their specific language background, not generic grammar rules.
Price: $1 for the first month, then $4/mo (Standard), $9/mo (Pro), or $14/mo (Premium).
Chrome Web Store rating: 4.6 out of 5 stars (296 reviews).
Key limitation: Smaller user base than Grammarly means fewer integrations with third-party tools. The extension focuses specifically on English output, so it is not a multi-language grammar tool for writing in French or German.
3. LanguageTool — Best Free Option
LanguageTool is an open-source grammar checker that supports over 30 languages natively, making it the go-to choice for multilingual writers who need corrections in languages other than English. The free tier is generous, covering most common grammar, spelling, and punctuation errors without a character limit for basic checks.
The premium version adds style suggestions, advanced grammar rules, and a personal dictionary. Because it is open-source, LanguageTool benefits from community contributions and is transparent about how corrections work.
Best for: Writers who need grammar checking across multiple languages or who want a solid free tool without creating an account.
Price: Free tier available. Premium at $5/mo (billed annually).
Chrome Web Store rating: 4.6 out of 5 stars.
Key limitation: The free tier lacks style and tone suggestions. Premium features are less comprehensive than Grammarly Premium, particularly for advanced English style analysis.
4. ProWritingAid — Best for Long-Form Writing
ProWritingAid is built for writers who produce long-form content: novels, dissertations, white papers, and detailed reports. Where most grammar tools focus on sentence-level corrections, ProWritingAid analyzes document-level patterns like pacing, sentence length variation, transition usage, and repeated phrases.
The reports dashboard is what sets it apart. You get over 20 distinct reports covering readability, style, structure, overused words, cliches, and more. It integrates with Google Docs, Word, and Scrivener in addition to Chrome.
Best for: Authors, academic writers, and content marketers who produce content over 1,000 words regularly.
Price: $10/mo (billed annually). Lifetime license available at $399.
Chrome Web Store rating: 4.5 out of 5 stars.
Key limitation: The depth of analysis can feel overwhelming for quick emails or short-form writing. The interface has a steeper learning curve than simpler tools like Grammarly.
5. Hemingway Editor — Best for Readability
Hemingway Editor takes the opposite approach from feature-heavy tools. It does one thing extremely well: it shows you where your writing is hard to read. Sentences are color-coded by complexity. Yellow means a sentence is hard to read. Red means it is very hard to read. Adverbs, passive voice, and overly complex phrases are highlighted for simplification.
The web version is free and works in any browser. There is also a desktop app with export features. Hemingway does not fix your writing for you. Instead, it teaches you to write more clearly by making complexity visible.
Best for: Bloggers, marketers, and anyone who wants to improve readability scores and write at a grade level that reaches the widest audience.
Price: Free (web app). Desktop app at $19.99 one-time.
Chrome Web Store rating: 4.4 out of 5 stars.
Key limitation: No real-time inline corrections. You need to paste text into the Hemingway interface rather than getting suggestions as you type. No grammar or spelling checking. It is purely a readability tool.
6. Wordtune — Best for Rephrasing
Wordtune specializes in rewriting sentences while preserving their meaning. Highlight a sentence, and Wordtune offers multiple alternative phrasings. You can ask it to make text more casual, more formal, shorter, or longer. This is particularly useful when you know what you want to say but cannot find the right way to say it.
The AI-powered suggestions go beyond simple synonym swaps. Wordtune restructures sentences, adjusts tone, and can expand brief notes into full paragraphs. The free tier offers 10 rewrites per day.
Best for: Professionals who need to adjust tone frequently, such as switching between client emails and internal messages, or writers who get stuck on phrasing.
Price: Free tier (10 rewrites/day). Premium at $10/mo (billed annually).
Chrome Web Store rating: 4.5 out of 5 stars.
Key limitation: The free tier is restrictive at 10 rewrites per day. Wordtune does not catch grammar or spelling errors. It is a rephrasing tool, not a proofreader, so you still need a grammar checker alongside it.
7. QuillBot — Best for Paraphrasing
QuillBot offers multiple paraphrasing modes: Standard, Fluency, Formal, Simple, Creative, Expand, and Shorten. Each mode transforms your text in a distinct way, making it versatile for different use cases. Students use it to avoid unintentional plagiarism. Professionals use it to adapt content for different audiences.
The Chrome extension integrates with Google Docs and lets you paraphrase text inline. QuillBot also includes a grammar checker, summarizer, and citation generator in its premium tier, making it a more complete writing toolkit than its paraphrasing reputation suggests.
Best for: Students and content creators who need to rephrase source material or adapt existing content for new contexts.
Price: Free tier available (125-word limit per paraphrase). Premium at $10/mo (billed annually).
Chrome Web Store rating: 4.4 out of 5 stars.
Key limitation: The free tier’s 125-word limit per paraphrase is frustrating for longer passages. Heavy reliance on paraphrasing tools can weaken your own writing skills over time. The grammar checker is less thorough than dedicated tools like Grammarly or LanguageTool.
8. Readable — Best for Content Teams
Readable goes beyond individual writing assistance to provide content scoring for entire teams. It analyzes readability using multiple algorithms (Flesch-Kincaid, Gunning Fog, Coleman-Liau, and others), assigns an overall content quality score, and tracks improvements over time.
The team dashboard lets editors set readability targets, monitor content across the organization, and generate reports. It is particularly valuable for companies that publish at scale and need consistent quality standards.
Best for: Content marketing teams, editorial departments, and organizations that need to maintain consistent readability standards across multiple writers.
Price: $8/mo for individuals. Team plans available with custom pricing.
Chrome Web Store rating: 4.3 out of 5 stars.
Key limitation: Overkill for individual writers. The value proposition is strongest for teams of 5+ writers. Does not provide grammar corrections. It focuses on readability metrics and content scoring rather than line-level fixes.
9. Writefull — Best for Academic Writing
Writefull is purpose-built for academic and scientific writing. It checks grammar and style against a database of published academic papers, so its suggestions reflect the conventions of scholarly writing rather than casual English. It integrates with LaTeX editors (Overleaf), which is essential for researchers in STEM fields.
Features include citation checks, academic phrase suggestions, and a paraphraser trained specifically on academic text. Writefull understands that “the results suggest” is preferred over “the results show” in certain contexts, and similar discipline-specific norms.
Best for: Researchers, graduate students, and academics who publish papers and need writing assistance that understands scholarly conventions.
Price: $16/mo for individuals. Institutional licenses available.
Chrome Web Store rating: 4.5 out of 5 stars.
Key limitation: Not useful for non-academic writing. The suggestions are calibrated for formal research papers and will feel overly rigid for blog posts, emails, or creative writing. The price is higher than general-purpose alternatives.
10. Just Not Sorry — Best Free Confidence Tool
Just Not Sorry is a lightweight, single-purpose extension that highlights undermining language in your emails. Words and phrases like “just,” “sorry,” “I think,” “I’m no expert,” and “does that make sense?” are underlined with an explanation of how they weaken your message.
It is not a grammar checker or style editor. It is a confidence tool. Just Not Sorry runs only in Gmail and focuses exclusively on helping you communicate more assertively. Hover over any highlighted phrase to see why it undermines your authority and how to rephrase it.
Best for: Professionals who want to communicate more confidently in email, particularly in workplace contexts where assertive language matters.
Price: Free.
Chrome Web Store rating: 4.2 out of 5 stars.
Key limitation: Works only in Gmail. Does not catch grammar errors, spelling mistakes, or style issues. The scope is narrow by design, so you will need another tool for actual proofreading.
How to Choose the Right Writing Extension
The best writing extension depends on your specific situation:
- If you write in English as a second language, start with BeLikeNative. The L1-aware corrections will catch errors that generic tools miss entirely.
- If you need an all-around grammar checker, Grammarly is the safe choice with the largest feature set and broadest integrations.
- If you want something free and open-source, LanguageTool covers the basics without requiring a subscription.
- If you write long-form content, ProWritingAid’s document-level analysis is unmatched.
- If you are an academic, Writefull understands scholarly conventions that other tools ignore.
- If you struggle with phrasing, Wordtune and QuillBot both excel at rewording, with different strengths.
Most writers benefit from combining two tools: a grammar checker (Grammarly, BeLikeNative, or LanguageTool) plus a style or readability tool (Hemingway, ProWritingAid, or Readable). The extensions listed here do not conflict with each other in practice.
Methodology
We evaluated each extension based on the following criteria:
- Accuracy: How reliably does the tool catch real errors without excessive false positives?
- Coverage: Does it work across Gmail, Google Docs, social media, and other common writing surfaces?
- Value: Is the free tier useful, and does the premium price justify the upgrade?
- Specialization: Does the tool excel in its claimed niche?
- Active development: Is the extension maintained, updated, and compatible with Manifest V3?
All extensions listed here are actively maintained as of May 2026 and use the Manifest V3 standard.
This guide is part of the Chrome Extension Guide by theluckystrike. Built at zovo.one.