# Alternatives to Grammarly

The grammar-checking incumbent.

Grammarly ranks #1 of 9 in AI writing assistants, with an Alt Score of 86. It is proprietary, freemium from $12/month (billed annually) and available on Windows, macOS, Web, Browser extension, iOS and Android. 9 of 10 checklist rows are verified against a public source.

Source: https://altcatalog.com/alternatives/grammarly/
Category: AI writing assistants

## Overview

- **Who it's for**: Individuals (students, professionals, everyday writers) and teams or organizations across departments like marketing, sales, HR, and support who write regularly across email, docs, and other apps.
- **What you get**: Real-time grammar, spelling, and punctuation correction alongside clarity, tone, and style suggestions. AI-assisted rewriting and generation for drafting, rephrasing, or adjusting tone while preserving the writer's voice. Additional tools include plagiarism checking, AI-content detection, and citation generation.
- **How it works**: Grammarly runs as a browser extension, desktop app, or plugin for tools like Google Docs and Microsoft Office, underlining issues and offering inline suggestions as you type. Users accept, reject, or rewrite flagged text, and can prompt the AI directly for rewrites or new content.

## Profile

- **License**: Proprietary (verified 2026-07-10)
- **Pricing model**: Freemium (verified 2026-07-10)
- **Starts at**: $12/month (billed annually) (verified 2026-07-10)
- **Platforms**: Windows, macOS, Web, Browser extension, iOS, Android
- **Status**: active (verified 2026-07-10)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [QuillBot](https://altcatalog.com/alternatives/quillbot.md) | 86 | Proprietary | Web, Browser extension, Windows, macOS |
| 2 | [Jasper](https://altcatalog.com/alternatives/jasper.md) | 82 | Proprietary | Web, Browser extension |
| 3 | [LanguageTool](https://altcatalog.com/alternatives/languagetool.md) | 82 | LGPL-2.1-or-later | Web, Browser extension, Windows, macOS |
| 4 | [DeepL Write](https://altcatalog.com/alternatives/deepl-write.md) | 73 | Proprietary | Web, Windows, macOS, Browser extension |
| 5 | [ProWritingAid](https://altcatalog.com/alternatives/prowritingaid.md) | 73 | Proprietary | Web, Browser extension, Windows, macOS |
| 6 | [Wordtune](https://altcatalog.com/alternatives/wordtune.md) | 73 | Proprietary | Web, Browser extension, iOS |
| 7 | [Copy.ai](https://altcatalog.com/alternatives/copyai.md) | 64 | Proprietary | ? |
| 8 | [Sudowrite](https://altcatalog.com/alternatives/sudowrite.md) | 46 | Proprietary | Web |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Feature comparison

Legend: Yes / No / Partial / ? (not verified).

| AI writing assistants checklist | Grammarly | QuillBot | Jasper | LanguageTool | DeepL Write | ProWritingAid |
|---|---|---|---|---|---|---|
| Pricing model | Freemium | Freemium | Subscription | OSS + paid hosting | Freemium | Freemium |
| Starts at | $12/month (billed annually) | €8.33/month (billed annually) | $59/month per seat (billed annually) | ? | ? | €120/year (Premium, billed yearly) |
| License | Proprietary | Proprietary | Proprietary | LGPL-2.1-or-later | Proprietary | Proprietary |
| Platforms | Windows, macOS, Web, Browser extension, iOS, Android | Web, Browser extension, Windows, macOS, iOS, Android | Web, Browser extension | Web, Browser extension, Windows, macOS | Web, Windows, macOS, Browser extension | Web, Browser extension, Windows, macOS |
| Grammar & spelling | Yes | Yes | Yes | Yes | Yes | Yes |
| Style / tone rewriting | Yes | Yes | Yes | Yes | Yes | Yes |
| Long-form generation | Yes | Yes | Yes | ? | No | Partial |
| Plagiarism detection | Yes | Yes | Yes | ? | ? | Yes |
| Browser extension | Yes | Yes | Yes | Yes | Yes | Yes |
| Office / Docs integration | Yes | Yes | Yes | Yes | Yes | Yes |
| Self-hostable | ? | ? | ? | Yes | ? | ? |
| Free tier limits | Yes | Partial | No | Yes | Yes | Partial |
| Multilingual | Partial | Yes | Yes | Yes | Yes | ? |
| Data used for training (opt-out) | Yes | Yes | Yes | Yes | Yes | Yes |

## Sources

Sources for Grammarly. Each alternative is sourced on its own page.

- **Pricing model**: Freemium — <https://www.grammarly.com/plans> (verified 2026-07-10)
  - Quote: “Write without spelling and grammar mistakes”
- **License**: Proprietary — <https://www.grammarly.com/privacy-policy> (verified 2026-07-10)
  - Quote: “Grammarly, Inc.”
- **Starts at**: $12/month (billed annually) — <https://www.grammarly.com/premium> (verified 2026-07-10)
  - Quote: “$12 USD / member / month, billed annually”
- **Platforms**: Windows, macOS, Web, Browser extension, iOS, Android — <https://www.grammarly.com/where-grammarly-works> (verified 2026-07-10)
  - Quote: “Grammarly works in 1 million+ apps and programs to help improve your writing without breaking focus or toggling tabs.”
- **Status**: active — <https://www.grammarly.com/blog/product/multilingual-support-launch/> (verified 2026-07-10)
  - Quote: “You can now write clearly in 6 languages and translate instantly across 19 languages without ever leaving your workflow.”
- **Grammar & spelling**: Yes — <https://www.grammarly.com/features> (verified 2026-07-10)
  - Quote: “Catch typos, missing punctuation, grammatical errors, and commonly confused words before you hit send.”
- **Style / tone rewriting**: Yes — <https://www.grammarly.com/features> (verified 2026-07-10)
  - Quote: “From formal to friendly, Grammarly's tone adjustments make every message land as you intend.”
- **Long-form generation**: Yes — <https://www.grammarly.com/ai-writing-tools> (verified 2026-07-10)
  - Quote: “Your document will get a head start with AI that can write entire paragraphs.”
- **Plagiarism detection**: Yes — <https://support.grammarly.com/hc/en-us/articles/115000091452-Plagiarism-Checker-user-guide> (verified 2026-07-10)
  - Quote: “The Plagiarism Checker is your built-in originality guide, scanning your writing against vast databases, academic papers, websites, and published works to identify unintentional similarities and ensur”
- **Browser extension**: Yes — <https://www.grammarly.com/where-grammarly-works> (verified 2026-07-10)
  - Quote: “Grammarly works in 1 million+ apps and programs to help improve your writing without breaking focus or toggling tabs.”
- **Office / Docs integration**: Yes — <https://www.grammarly.com/microsoft-word> (verified 2026-07-10)
  - Quote: “Grammarly for Microsoft Word is an integration that allows you to use Grammarly's AI features while writing in Microsoft Word, in addition to other Microsoft apps such as Teams, Excel, PowerPoint, and”
- **Free tier limits**: Yes — <https://www.grammarly.com/plans> (verified 2026-07-10)
  - Quote: “Generate text with 100 AI prompts”
- **Multilingual**: Partial — <https://www.grammarly.com/features> (verified 2026-07-10)
  - Note: English-first; 25+ languages supported.
  - Quote: “Get high-quality, real-time writing support in more than 25 languages including Spanish, French, German, and Portuguese.”
- **Data used for training (opt-out)**: Yes — <https://support.grammarly.com/hc/en-us/articles/20916119474829-Privacy-and-security-FAQs> (verified 2026-07-10)
  - Quote: “We do not sell your content. We make money when users purchase our paid products, and not by selling or monetizing user content.”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/