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What is Grammarly AI?

Grammarly is a writing assistant that checks your work in real time as you type. It catches grammar, punctuation, and spelling errors, then suggests improvements to clarity and tone. The tool works across emails, documents, social media posts, and web forms, making it useful for anyone who writes regularly. Beyond basic corrections, Grammarly analyses your writing style and can flag issues like repetitive phrasing or inconsistent tone. A plagiarism detector is included to check whether content matches existing sources online. The free version covers essential grammar and spelling checks, whilst paid plans add more advanced features like tone detection and brand voice customisation.

Key Features

Real-time grammar and spelling checks as you write

Tone detection to assess how your writing might come across to readers

Plagiarism scanning to compare your text against online sources

Style suggestions for clarity, conciseness, and sentence structure

Works across browsers, email clients, and native applications

Customisable writing goals based on audience and formality level

Pros & Cons

Advantages

  • Free version is genuinely useful for basic writing tasks
  • Works wherever you write, including Gmail, Google Docs, and most web forms
  • Tone and plagiarism features help you understand how your writing lands
  • Simple interface that doesn't distract from your actual writing

Limitations

  • Suggestions can be overly cautious or miss context-specific usage
  • Plagiarism checker in free tier may have limitations compared to dedicated tools
  • Relies on internet connection to function fully

Use Cases

Checking emails before sending to clients or colleagues

Writing essays or reports at school or university

Proofreading blog posts, website copy, or social media content

Non-native English speakers seeking feedback on clarity and grammar

Professional writers refining tone and style in longer documents