Grammar and editing

Grammar and editing tools check text as you write and point out problems you might miss on a reread: spelling and typos, missing or extra words, subject and verb that don't agree, comma trouble, and sentences that run too long. The better ones also flag wordiness, repeated words and unclear phrasing, and offer a rewrite you can accept or ignore.

Where the tool works matters as much as what it catches. A browser extension checks text in email, web forms and Google Docs. An add-in for Microsoft Word checks documents where many offices still write. A separate web editor is fine for long pieces you paste in, but it adds a step people skip when they are busy. Pick the tool that sits inside the apps you already use every day.

Tone checks are a newer feature in several of these tools. They flag sentences that may read as blunt, unsure or overly formal, which helps with email to clients and feedback to colleagues. Treat them as a second opinion: a direct sentence is sometimes exactly what the situation needs, and the tool cannot know the relationship behind the message.

Language support is the next filter. Some checkers handle English only. Others cover German, French, Spanish and more, which suits people who write in more than one language or work with international teams. Coverage is not always equal, so test the tool on your own writing in each language you need.

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5 AI writing tools in grammar and editing

Grammarly

Checks grammar, spelling, clarity and tone as you type in your browser, email and documents.

  • Free plan or free tier
  • Browser extension
  • Works inside Word or Google Docs

ProWritingAid

Grammar checker and style editor with detailed reports on pacing, repetition and readability, popular with authors.

  • Free plan or free tier
  • Browser extension
  • Works inside Word or Google Docs

Hemingway Editor

by Hemingway

Highlights long, hard-to-read sentences, passive voice and adverbs so you can make text plainer.

  • Free plan or free tier

LanguageTool

Grammar, spelling and style checker for English and many other languages, with browser and Office add-ons.

  • Free plan or free tier
  • Browser extension
  • Works inside Word or Google Docs

Ginger

by Ginger Software

Grammar and spelling checker with a sentence rephraser and translation, used on the web and in apps.

  • Browser extension
  • Supports languages other than English

Style tools go further than grammar. Some score readability and highlight sentences that are hard to follow, which helps with web copy, instructions and reports for busy readers. Others run reports on overused words, pacing and sentence variety, which fiction and nonfiction authors use on long manuscripts. These reports are advice, not rules: a technical paper can need long sentences, and dialogue often breaks grammar on purpose.

Accept suggestions one at a time rather than in bulk. Checkers misread names, product terms and specialist vocabulary, and a suggested rewrite can change your meaning. Adding your own terms to the tool's dictionary cuts the noise.

For teams, look at admin controls, shared style rules and how the vendor handles the text it checks. Writing that passes through a checker can include customer details or confidential plans, so the data terms deserve a read before rollout.

Questions about grammar and editing

Do grammar checkers work in Google Docs and Word?

Many do. Browser extensions usually work in Google Docs, and several tools offer an add-in for Microsoft Word. Each tool page here shows whether it works inside Word or Google Docs when we could confirm it.

Is a free grammar checker enough?

For catching spelling and basic grammar mistakes, free tiers often are. Paid plans tend to add style and clarity suggestions, rewrites of whole sentences, higher limits and team features. Try the free version on a week of your real writing before paying.

Can a grammar checker handle languages other than English?

Some can. LanguageTool, for example, checks many European languages as well as English. Others are English only. If you write in several languages, test each one, since the depth of checks varies by language.

Should I accept every suggestion?

No. Suggestions are guesses about what you meant. Read each one, especially in technical, legal or creative writing, and add names and special terms to the tool's dictionary so they stop getting flagged.

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