It checks for grammatical errors, spelling mistakes, and punctuation inaccuracies that Google spell checker can't detect, and it can rephrase sentence to make your writing spell right and concise.
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Listing updated:March 16, 2026
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138K+
Overview
Improve your writing with GPT Grammar and Spell Checker in Google Docs™ and Google Slides™. It is built on OpenAI GPT-3.5 and GPT-4 and can not only check for grammatical mistakes, spelling errors but also concise content and paraphrase sentences.

It can check for errors that Google spell checker cannot detect.

Features of GPT Grammar and Spell Checker include:
★ Grammar Checker
★ Spell Checker
★ Punctuation Checker
★ Paraphrasing Tool (to restructure and rephrase sentences)
★ Plagiarism and originality detection
★ Improve readability

People use GPT Grammar Checker for tasks like:
➤ Improving style and sentence structure for content marketing
➤ Editing homework or an essay for school
➤ Preparing an article for a newspaper or blog
➤ Writing clear and impactful copy for websites, ads, and social media
➤ Refining business documents & reports
➤ Teaching students how to write more effectively
➤ Blogging about the difference between "gramer, gramar, grammer and grammar"

Unlike Grammarly and Ginger, GPT Grammar Checker for many languages.
Additional information
PricingFree of charge
Developer
Non-trader
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GPT Grammar and Spell Checker will ask for the permissions shown below. Learn more
GPT Grammar and Spell Checker will need access to your Google account
This will allow GPT Grammar and Spell Checker to :
View and manage documents that this application has been installed in
View and manage the Google Slides presentations that this application is installed in
Display and run third-party web content in prompts and sidebars inside Google applications
Connect to an external service
See your primary Google Account email address
See your personal info, including any personal info you've made publicly available
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Dippery Barnhill
June 18, 2026
It is helpful to check spell error and grammar error, very good!!! I like it very mach.
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A User of GPT Grammar and Spell Checker
June 10, 2026
This tool is very easy to use, can correct the grammar error with on click.
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Aksiniya Abuhasera
May 28, 2026
It's very helpful for me to check for grammatical and spelling errors.
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Martinmatthewwlyfg
May 26, 2026
It helps me correct grammar and spelling errors in my articles, and it's very convenient to use.
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Metra Astuto
June 7, 2026
The Grammar checker is easy to use, I like this tool.
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Surya Narayana
July 1, 2026
It's a very useful and intelligent grammar checker.
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Thai Hiếu
June 29, 2026
Good grammar and spell check tool, i use it very often in work.
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MARK LEISA
May 21, 2026
It is helpful to my report. Good tool!
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A Bishop (Ali)
August 3, 2024
The "basic" option, the free option, only lets you use it ONCE. Useless for trying to test it out and see how well it really works if you don't know that BEFOREHAND. Wasted my chance to see if the extension would useful to me because I didn't test it on a complex document. The developer wasted the chance to demonstrate the quality of their product by not communicating this or increasing the number of usages to 5 or 10. Nobody's going to pay $10/month after such a skimpy trial.
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ziqing han
July 9, 2025
This has helped me write my stories better
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