Grammar Checker

A grammar checker finds and fixes spelling, grammar, punctuation and style mistakes in your writing. This free tool sends up to 5,000 characters to Google Gemini, returns a corrected version, and highlights every removed and added word so you can see exactly what changed. It also lists suggestions for clearer writing. Review each change before you use it.

Free, no signup. Text is processed by an AI model and is not stored.

How to use the Grammar Checker

  1. Choose what to check: spelling, grammar, style and suggested improvements.
  2. Paste your text into the "Text to check" box (10 to 5,000 characters).
  3. Click "Check grammar" or press Ctrl + Enter.
  4. Review the highlighted changes and the list of suggestions.
  5. Copy or download the corrected text, or click "Replace my text" to keep editing.

Features

  • Checks spelling, grammar and style, with optional suggestions for improvement
  • Highlights every change: removed words struck through in red, added words underlined in green
  • Shows the full corrected text plus separate suggestion and improvement lists
  • Checks up to 5,000 characters per request, with a live word and character counter
  • Copy or download the corrected text, or replace your input with it
  • Clear error messages when the AI service is busy or unavailable

Frequently asked questions

How do I see what the grammar checker changed?

After a check, the tool compares your text with the corrected version word by word. Removed words are struck through in red and added words are underlined in green, so you can review each change.

Which languages can it check?

It works best with English. The AI model can also correct many other languages, but results are less consistent, so review corrections carefully.

Is it as good as Grammarly?

It covers the core job of fixing spelling, grammar and punctuation in pasted text and shows every change. It does not offer browser extensions, real-time checking as you type or plagiarism detection.

Is my text stored or shared?

Your text is sent over HTTPS to this site's server and on to Google Gemini to generate the result. This site does not save the text or the result. Avoid pasting passwords, personal data or confidential documents into any online AI tool.

Related tools

  • Article Rewriter – Rewrite and paraphrase text in five styles and four tones with AI
  • Word Counter – Count words, characters, sentences and paragraphs with reading time, readability and keyword density
  • Text Case Converter – Convert text to sentence, upper, lower, title, camelCase, snake_case, kebab-case and more
  • Text Summarizer – Summarize articles, reports and notes with AI in short, medium or long form
  • Language Translator – Translate text between 29 languages with AI, with language detection and swap

Built and reviewed by Naqash Thaheem, Technical Project Manager. Last reviewed 2026-09-24.