Grammar Checker — Custom GPT alternative

Grammar Checker is an AI proofreader that corrects your text and tells you why. Paste an email, an essay, a post or a cover letter and get a clean version back, together with a short list of what was changed and the rule behind each fix.

What it can do

• Corrects grammar, spelling, punctuation and word choice.
• Explains every correction in one line, so you learn the rule instead of repeating the mistake.
• Keeps your meaning and voice: it does not rewrite more than necessary unless you ask.
• Adjusts tone on request: more formal, friendlier, shorter, clearer or more persuasive.
• Works in English and many other languages, including Spanish, German, French, Italian, Portuguese, Russian, Japanese, Korean and Chinese.
• Answers grammar questions: affect vs effect, who vs whom, when to use a semicolon, articles, tenses and more.

How to use it

• Paste your text and send it. Long texts are fine.
• Say what the text is for (a work email, an academic essay, a social post) if you want the style tuned to it.
• Ask for "only corrections" or "a full rewrite" to control how much changes.

Example requests

• Fix this: their going to the park tomorow, its going to be fun
• Make this email sound more professional
• What is the difference between "affect" and "effect"?
• Check my essay for grammar and suggest clearer sentences

Good to know

You always get the corrected text in one block that is easy to copy, followed by the explanations. Grammar Checker is a writing assistant, not a plagiarism or AI-detection tool.

A Custom GPT alternative

Grammar Checker works like the popular Grammar Checker GPT: paste a text and get it corrected with an explanation for every change. No ChatGPT account is needed, and it works in many languages.