Grammarly Alternatives That Work in More Apps (2026)
If you've spent any time with Grammarly, you know the catch: it's brilliant inside a Chrome tab, mediocre inside a desktop app, and basically invisible inside places like a code editor, a terminal note, or a Slack thread launched from the native client. The browser extension is the product. Step outside the browser and you're back to red squiggles and copy-paste-into-grammarly.com workflows.
That gap matters in 2026 because most knowledge work no longer lives in the browser. Notion has a native desktop app. Slack and Microsoft Teams are Electron apps that Grammarly's extension can't reliably reach. Engineers write release notes in VS Code. Founders draft investor updates in Apple Notes or Obsidian. A grammar checker that only fires inside *.com URLs is leaving half your writing unchecked.
This guide is for anyone who has tried Grammarly, hit that wall, and asked: what actually works across every app I type in? I evaluated alternatives against four criteria that matter once you leave the browser: (1) system-wide desktop coverage — does it run as a native macOS/Windows app that monitors any text field, (2) deep integrations with Notion, Google Docs, Word, and Slack, (3) support for non-prose writing — Markdown, code comments, technical docs — without flagging every variable name, and (4) honest pricing versus Grammarly Premium at ~$30/month.
For a wider look at writing software, you can also browse our AI writing and content tools category. Below, three Grammarly alternatives that actually follow your writing wherever it goes — and what each one does better than Grammarly itself.
Full Comparison
AI-powered grammar, style, and spell checker for 30+ languages
💰 Free plan available, Premium from $4.99/mo (billed annually)
LanguageTool is the Grammarly alternative most likely to actually work where Grammarly doesn't. The reason is simple: it ships native desktop apps for Windows and macOS that hook into the OS-level text input system, not just browser DOM events. That means it can check your writing inside Slack's native client, Notion's desktop app, Apple Notes, Obsidian, and pretty much any focused text field — places where Grammarly's extension is either dead or running in a crippled fallback mode.
On top of the desktop coverage, LanguageTool offers proper add-ins for Google Docs, Microsoft Word, LibreOffice, and all major browsers, plus dedicated support for over 30 languages — the broadest multilingual coverage on the market. For technical writers, the custom rules and personal dictionary features let you stop the checker from flagging variable names, product names, and house-style terminology. The open-source core also means you can self-host the engine on your own server if your team has privacy or compliance requirements that rule out cloud SaaS.
Where LanguageTool falls short of Grammarly is the generative side — there's no equivalent of Grammarly's full-document AI rewriting, and the writing-coach feel is more utilitarian. But if your problem is "Grammarly only works in my browser," LanguageTool is the most direct fix on this list, at roughly one-sixth the price of Grammarly Premium.
Pros
- Native Windows and macOS desktop apps monitor any text field system-wide — works in Slack, Notion, Obsidian, and IDEs where Grammarly fails
- Supports 30+ languages, by far the widest multilingual coverage of any Grammarly alternative
- Self-hosting option via the open-source engine — critical for privacy-sensitive teams (legal, healthcare, enterprise)
- Custom rules and personal dictionary handle technical writing (variable names, brand terms) without constant false positives
- Premium is $4.99/month annual — roughly 1/6 the cost of Grammarly Premium
Cons
- Generative AI features (full-document rewriting, tone rewriting) are weaker than Grammarly's newer offerings
- Some suggestions miss nuance and context that Grammarly's larger model catches
- Onboarding is more utilitarian — less hand-holding than Grammarly's polished UX
Our Verdict: Best for power users, multilingual writers, and anyone whose biggest gripe with Grammarly is 'it only works in the browser' — LanguageTool's native desktop app is the closest thing to a true system-wide replacement.
AI-powered writing and paraphrasing suite
💰 Free plan with basic features, Premium from $8.33/mo billed annually
QuillBot is the alternative to reach for if your real problem with Grammarly isn't grammar — it's rewriting. Grammarly fixes errors; QuillBot rephrases entire passages in ten-plus paraphrasing modes (Standard, Fluency, Formal, Creative, Shorten, Expand, and more), with a synonym slider that lets you dial how aggressive the rewrite is. For anyone drafting blog posts in Notion, sales emails in Gmail, or product copy in Google Docs, that's a meaningfully different workflow.
QuillBot's Chrome extension is the second-most-polished on this list after Grammarly's own, and it reaches into Google Docs, Gmail, LinkedIn, and the major web-based writing apps where Grammarly historically dominates. The native desktop story is weaker — QuillBot doesn't have a system-wide Windows/macOS client like LanguageTool — but it does include a full Mac and Windows app for paraphrasing pasted text, plus an Office add-in for Word.
Beyond paraphrasing, QuillBot bundles a grammar checker, summarizer, AI humanizer, plagiarism checker, and citation generator into one subscription. For students, content marketers, and anyone juggling research-heavy writing, that suite ends up replacing two or three separate Grammarly-adjacent tools. The grammar checking itself is solid but not LanguageTool-level — think of QuillBot as a rewriting tool with grammar attached, not the other way around.
Pros
- AI paraphraser with 10+ modes is best-in-class — does something Grammarly Premium charges extra for
- Bundled summarizer, AI humanizer, plagiarism checker, and citation generator replace 2-3 separate tools
- Chrome extension works smoothly inside Google Docs, Gmail, and LinkedIn — the main places Grammarly users overlap
- Strong support for academic and content-marketing workflows (citations, sources, humanizing AI drafts)
Cons
- No true system-wide desktop checker — coverage outside Chrome and Word is thinner than LanguageTool
- Grammar checking is decent but less precise than LanguageTool or Grammarly itself
- Free tier caps paraphrasing at 125 words, which is restrictive for serious use
Our Verdict: Best for content marketers, students, and ESL writers whose main need is rewriting and paraphrasing — pick QuillBot when 'fix my grammar' is less important than 'help me say this differently.'
AI-powered writing companion that rewrites, rephrases, and refines your text
💰 Free plan with 10 rewrites/day. Advanced at $6.99/mo annual. Unlimited at $9.99/mo annual.
Wordtune from AI21 Labs sits in a different lane than the other two: it's a sentence-level rewriter rather than a full grammar checker or paraphrasing suite. Where Grammarly tells you what's wrong and QuillBot rephrases paragraphs, Wordtune suggests four or five different ways to phrase the exact sentence you just typed — shorter, longer, more casual, more formal — and lets you pick.
That workflow is unusually well-suited to apps where tone is the whole game: LinkedIn posts, cold emails, customer-support replies, sales follow-ups. The Chrome extension covers Gmail, Google Docs, LinkedIn, Outlook, Slack web, and Microsoft Word for the web. For non-native English speakers especially, Wordtune's rewrite suggestions surface idiomatic phrasings that grammar checkers don't — it's not catching errors, it's showing you how a fluent writer would say the same thing.
Wordtune also includes a summarizer that handles PDFs and YouTube transcripts, plus "Spices" — generative prompts that inject statistical facts, analogies, or counterarguments into your draft. The trade-off is that Wordtune is the thinnest of the three on classic grammar checking and has no real native desktop app, so if you live inside Notion desktop or an IDE, this isn't the tool for you. But for browser-heavy writers who want tone control more than typo fixes, it's the most differentiated option on this list.
Pros
- Sentence-level rewrites with multiple tone and length variants — uniquely useful for ESL writers and tone-sensitive contexts (sales, LinkedIn, support)
- Spices feature generates facts, analogies, and counterarguments inline — a genuine writing-assistant capability Grammarly doesn't match
- Summarizer handles PDFs and YouTube videos in addition to text
- Covers the main web-based writing surfaces (Gmail, Google Docs, LinkedIn, Outlook) reliably
Cons
- No native system-wide desktop app — coverage outside the browser is limited
- Grammar checking is the weakest of the three; not a true Grammarly replacement on its own
- Free tier capped at 10 rewrites per day, which runs out fast in real use
Our Verdict: Best for ESL writers, salespeople, and creators who care more about tone and phrasing than typo correction — Wordtune is the rewrite-first alternative when Grammarly's red squiggles aren't the bottleneck.
Our Conclusion
Quick decision guide:
- You write in multiple languages, or you want a real desktop app: Go with LanguageTool. Native Windows and macOS apps, 30+ languages, and self-hosting if you care about privacy. The system-wide desktop client is the closest thing on this list to "Grammarly but everywhere."
- You paraphrase, summarize, and rewrite more than you proofread: Pick QuillBot. Its paraphraser, summarizer, and AI humanizer are best-in-class, and the Chrome extension reaches into Google Docs, Gmail, and most web apps where you draft long-form content.
- You want a sentence-level rewriter that fixes tone, not just typos: Wordtune is the pick. It excels at suggesting multiple ways to phrase the same idea — invaluable for ESL writers, sales emails, and LinkedIn posts where tone matters more than commas.
My overall recommendation for most readers landing on this article: start with LanguageTool's free tier. It's the only option here with a true desktop app that monitors any text field on your machine, and at $4.99/month for Premium it's roughly one-sixth of Grammarly's price. Add QuillBot's free paraphraser when you need to rewrite something. That stack covers more surface area than Grammarly Premium alone — for less money.
Next step: install LanguageTool's desktop app, point it at the app where Grammarly fails you most (probably Slack, Notion, or your IDE), and write a few paragraphs. If the corrections feel useful within ten minutes, you've already proven the point.
For more context, see our deep dive on QuillBot vs Grammarly and our broader roundup of writing and document tools.
Frequently Asked Questions
Why doesn't Grammarly work in Notion, Slack, or my IDE?
Grammarly is built primarily as a browser extension and a Word/Outlook add-in. Native Electron apps (Notion desktop, Slack, Discord) and editors like VS Code don't expose text fields the way browsers do, so Grammarly's checker either can't see your text or runs in a heavily degraded mode. The web versions sometimes work, but the desktop apps mostly don't.
Which Grammarly alternative has the best desktop app?
LanguageTool. It ships native Windows and macOS apps that monitor any focused text field system-wide — including in non-browser apps where Grammarly is blind. That's the single biggest reason power users switch.
Are these Grammarly alternatives cheaper than Grammarly Premium?
Yes, significantly. Grammarly Premium runs around $30/month month-to-month. LanguageTool Premium is $4.99/month annual, QuillBot Premium is $8.33/month annual, and Wordtune Advanced is $6.99/month annual. Even buying two of these is cheaper than a single Grammarly seat.
Can any of these check grammar in code or Markdown without false positives?
LanguageTool handles Markdown reasonably well and lets you create custom rules and a personal dictionary so variable names and technical terms stop getting flagged. None of these are purpose-built for code, but LanguageTool's custom-rule system is the most code-friendly option.
Do any of these work offline or self-hosted for privacy?
LanguageTool is the only one on this list with a self-hosted option. The core engine is open source, so privacy-sensitive teams (legal, healthcare, enterprise) can run it on their own servers and avoid sending text to a third party — something Grammarly does not offer.