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    Grammarly

    Writing, simplified and strengthened by AI.

    Tool Introduction

    Grammarly is a digital writing assistant that helps users communicate more effectively in English using artificial intelligence and natural language processing. Founded in 2009 by Max Lytvyn, Alex Shevchenko, and Dmytro Lider, it began as a tool for students but quickly expanded to serve a global audience. Headquartered in San Francisco with offices worldwide, Grammarly supports over 30 million daily users and 30,000 business teams. Its features have grown from grammar correction to include plagiarism detection, generative AI writing tools, and enterprise solutions.

    Demo Available?

    Grammarly offers a free plan for ongoing use. For Enterprise access or demos of premium features, you can contact sales directly.

    Tool's Accuracy

    Grammarly shows high accuracy in detecting grammar and spelling issues in standard written English. Users report relevant suggestions, though some advanced or

    Aggregate Rating

    4.5/5 stars (estimated from informal sources and major review platforms, based on 10,000+ reviews across the internet).

    Detailed Overview

    Grammarly offers real-time feedback on writing quality across platforms, supporting individual and enterprise communication goals.

    What [Grammarly] Does

    Grammarly analyzes text for grammar, spelling, punctuation, clarity, tone, engagement, and style. It provides suggestions to improve readability and tailor messages for specific audiences or contexts. Users can also access tools for rewriting content, generating drafts or summaries with generative AI (GrammarlyGO), enhancing vocabulary, and detecting plagiarism. Grammarly is available via web editor, browser extensions, Office add-ins, Google Docs integration, desktop apps for Windows and macOS, mobile keyboards for iOS and Android devices, and an API for developers.

    Who [Grammarly] is for

    Grammarly supports individuals like students and professionals who want to improve their writing. It also serves teams in businesses or academic settings aiming to boost communication quality. Enterprises use it to standardize tone across customer support or marketing content. Developers can integrate Grammarly’s API into their applications.

    Top Differentiators

    • Comprehensive feedback: Covers grammar plus tone, clarity, engagement.
    • Broad platform reach: Works on 500K+ sites and apps.
    • Generative AI: Create drafts or rewrite content with contextual prompts.
    • Plagiarism detection: Scans billions of sources.
    • Enterprise features: Includes team controls and analytics.
    • Privacy focus: Built-in data protection aligned with compliance standards.
    Introductory Video
    Founding Year

    2009

    Target Industry

    B2C, B2B, SMB, Enterprise, Education, Media and Publishing, Legal and Professional Services, Technology, Healthcare, Government

    Available Integrations
    • Browser Extension: Enables grammar, spelling, clarity, and tone suggestions across over 500,000 apps and sites including Gmail, Google Docs, Medium, X, and YouTube.
    • Microsoft Office: Dedicated add-ins for Word and Outlook provide real-time writing feedback while preserving formatting.
    • Google Workspace: Native integration offers sidebar and inline suggestions in Google Docs and Gmail.
    • Slack: Embeds writing suggestions and tone detection into team chats to support professional communication.
    • Microsoft Teams: Offers tone guidance and writing feedback within internal messaging threads.
    • Salesforce: Enhances sales and support communications with on-brand language checks; may require specific editions or permissions.
    • Zendesk: Provides agents with real-time assistance to improve the quality of customer support replies.
    • Jira: Adds writing feedback within issue descriptions and comments for technical teams.
    • REST API: Supports custom workflows by embedding AI-powered evaluation into enterprise systems; access may be limited to business plans.
    • AWS Marketplace: Products listed for streamlined enterprise procurement through Amazon’s cloud platform.
    • Free Plan: $0/month. Includes basic grammar and spelling checks and 100 AI prompts monthly.
    • Pro Plan: $12/member/month billed annually, $30/month billed monthly, or $60/quarter. Supports 1–149 seats. Adds full sentence rewrites, tone adjustments, style guides, brand tones, and 2,000 AI prompts per member monthly. Team features include knowledge share, snippets, and usage analytics. Replaces Premium and Business plans.
    • Enterprise Plan: Custom pricing. Includes all Pro features plus unlimited members, dedicated support, confidential mode, role controls, data loss prevention, and unlimited AI prompts per member monthly.

    A 7-day free trial is available for the Team version of the Pro plan.

    All payments are non-refundable. Default currency is USD; regional pricing in EUR, GBP, and INR is shown at checkout.


    Pricing last verified: 01/19/2026
    Official Source: https://www.grammarly.com/plans
    Disclaimer: Pricing is subject to change. Please confirm current pricing on the vendor site.
    Features & Specs
    • Grammar checking: Fixes spelling errors and punctuation mistakes automatically.
    • Clarity improvements: Suggests more concise ways to phrase ideas.
    • Tone adjustments: Analyzes mood of the message; offers edits when needed.
    • Style guidance: Recommends changes based on formality level.
    • Vocabulary enhancement: Replaces weak words with stronger alternatives.
    • Plagiarism checks: Available in Premium plans; compares against billions of pages.
    • Generative AI (GrammarlyGO): Helps you draft emails or rewrite documents instantly.
    • Multilingual dialect support: Covers US, UK, Canadian, Australian English variations.
    • Custom style guides: Business users can enforce branding rules across teams.
    • Team tools: Assign user roles; manage permissions in enterprise accounts.
    • Analytics dashboards: View usage trends at the team level (Business plan).
    • Integrations available: Works inside Microsoft Word/Outlook; integrates with Google Docs; browser-compatible across Chrome/Safari/Firefox/Edge; has apps for Windows/macOS/iOS/Android devices.
    • Developer access (API): RESTful API lets you embed Grammarly suggestions into your product’s text fields.

    Supported formats:

    • Plain text
    • Rich text
    • Microsoft Word (.
    Security & Compliance

    Data is encrypted in transit using TLS and at rest with industry-standard protocols. Data is processed primarily in the US and EU. SSO via SAML is supported for Business plans; SCIM enables automated user provisioning. Role-based access control is available. Users can delete data or accounts through the platform; retention policies comply with GDPR and CCPA. SOC 2 Type II and ISO 27001 certified. Complies with GDPR and CCPA regulations. No major security incidents reported as of September 2025.

    Industry Use-Cases

    Education

    Students use Grammarly in Word or Google Docs to fix grammar, clarity, and tone issues. This leads to better essays, higher grades, and more confidence. Institutions use the plagiarism checker to reduce cheating.

    Corporate/Enterprise

    Customer support teams use Grammarly for clear, on-brand emails that boost satisfaction. Marketing teams apply style guides and brand tones to keep messaging consistent across all content.

    Media and Publishing

    Writers draft content with Grammarly’s editor for fast feedback on grammar and engagement. Editors run plagiarism checks before publishing, improving speed and accuracy at scale.

    Legal and Professional Services

    Lawyers use Grammarly to write precise contracts and briefs by refining clarity and formality. Consultants review deliverables for persuasive, error-free language that builds client trust.

    Technology and Software Development

    Product teams simplify complex topics using Grammarly’s suggestions in documentation. Global teams standardize communication by adjusting tone for diverse audiences.

    Tool's Alternatives

    ProWritingAid
    Offers grammar, style, and readability checks with strong analytics features. Known for detailed structure reports but has a less intuitive interface than Grammarly.

    Ginger
    Provides grammar correction plus translation in over 40 languages. Useful for multilingual users but lacks advanced style or tone features found in Grammarly.

    LanguageTool
    Supports grammar checks in 20+ languages. Offers browser extensions and an API. Some advanced features require setup or premium access.

    Hemingway Editor
    Focuses on readability rather than deep grammar checking. Simplifies complex sentences but lacks tone detection and broad integrations.

    Reverso
    Combines grammar correction with translation in over 25 languages.

    Frequently Asked Questions

    What features are included in Grammarly’s Free plan?
    The Free plan includes basic grammar and spelling checks, tone detection, and up to 100 AI prompts monthly. It supports unlimited users but excludes advanced suggestions, plagiarism detection, and team tools.

    What does the Pro plan offer beyond the Free version?
    Pro adds advanced writing suggestions, full-sentence rewrites, brand tone controls, and 2,000 AI prompts monthly. It supports teams of up to 149 members with prorated pricing for added seats.

    How much does Grammarly Pro cost annually?
    Grammarly Pro costs $12 per member per month when billed annually. That totals $144 per user each year.

    Which platforms and devices support Grammarly?
    Grammarly works via browser extensions, desktop apps for Windows/macOS, mobile keyboards on iOS/Android, Google Docs, Microsoft Office add-ins, and a web-based editor.

    Can Grammarly be integrated into business software?
    Yes. Grammarly integrates with Slack, Microsoft Teams, Salesforce, Zendesk, Jira, Google Workspace apps like Docs and Gmail, and supports API access for custom workflows.

    Does Grammarly support enterprise-grade security standards?
    Yes. Data is encrypted in transit and at rest. The service complies with GDPR and CCPA; it's SOC 2 Type II and ISO 27001 certified.

    How does Grammarly support team collaboration?
    Business plans include admin roles, permissions management, analytics dashboards, unlimited style guides and tones for branding consistency across content.

    What is GrammarlyGO used for?
    GrammarlyGO is a generative AI tool that helps users draft emails or rewrite text instantly based on context-sensitive prompts.

    Does Grammarly detect plagiarism in documents?
    Yes. Plagiarism detection compares content against billions of sources online but is available only in Premium-level plans like Pro or Enterprise.

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