1. Grammarly
Grammar, spelling and tone suggestions everywhere you write.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Grammar, spelling and tone suggestions everywhere you write.
Best AI Detector & Grammar Checker Alternatives in 2026
AI Detector & Grammar Checker is a strong option, but it is not the right fit for everyone. Below are 10 alternatives compared on rating, install base, pricing and the use case each one actually wins on.
About AI Detector & Grammar Checker
Review selected text with TextAdviser to catch writing issues, check originality, detect AI-written text, and improve wording.
Free
Full reviewComparison at a glance
| Extension | Rating | Users | Pricing | Best for |
|---|---|---|---|---|
| AI Detector & Grammar Checker (original) | — | — | Free | Review selected text with TextAdviser to catch writing issues, check originality, detect AI-written text, and improve wording. |
| Grammarly | 4.5 | 37M+ | Freemium | Professionals and students who write daily in the browser and want a safety net before hitting send. |
| LanguageTool | 4.7 | 2M+ | Freemium | Multilingual writers and privacy-conscious teams who want a self-hostable alternative to Grammarly. |
| Magical: Text Expander & Autofill | 4.4 | 300K+ | Free | Magical is a text expander and autofill automation app used by over 100K companies. Expand text like magic and auto-fill forms. |
| MightyText - SMS from PC & Text from Computer | 4.1 | 200K+ | Free | SMS from PC or Mac using your Android #. Sync Text Messages, Calls, Notifications, Photos, Battery Status |
| Revision History: Writing Process Visibility for Google Docs & Slides | 3.7 | 200K+ | Freemium | Built for teachers: See how students write, not just what they wrote. View the writing process in Google Docs & Slides. |
| Justdone: GPT-4o AI Writing Assistant & Grammar Checker | — | — | Free | Elevate your writing with Justdone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more. |
| Ddict: AI Translation & Writing Assistant | — | — | Free | Translate text and enhance writing with AI for seamless language learning and communication in your browser. |
| Free Auto Text Expander for Google Chrome™ | 3.3 | 80K+ | Free | Create custom keyboard shortcuts to expand and replace text as you type! |
| Text to Speech for Google Chrome™ | 2.9 | 70K+ | Freemium | Want to listen to text being read out to you? |
| Image Alt Text Viewer | 4.4 | 70K+ | Freemium | Display alternative texts for images on a web page. |
AI Detector & Grammar Checker alternatives in detail
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2. LanguageTool
Open-source grammar checker supporting 30+ languages.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Open-source grammar checker supporting 30+ languages.
3. Magical: Text Expander & Autofill
Magical is a text expander and autofill automation app used by over 100K companies. Expand text like magic and auto-fill forms.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Magical is a text expander and autofill automation app used by over 100K companies. Expand text like magic and auto-fill forms.
4. MightyText - SMS from PC & Text from Computer
SMS from PC or Mac using your Android #. Sync Text Messages, Calls, Notifications, Photos, Battery Status
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: SMS from PC or Mac using your Android #. Sync Text Messages, Calls, Notifications, Photos, Battery Status
5. Revision History: Writing Process Visibility for Google Docs & Slides
Built for teachers: See how students write, not just what they wrote. View the writing process in Google Docs & Slides.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Built for teachers: See how students write, not just what they wrote. View the writing process in Google Docs & Slides.
6. Justdone: GPT-4o AI Writing Assistant & Grammar Checker
Elevate your writing with Justdone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Elevate your writing with Justdone — your all-in-one tool for grammar checking, paraphrasing, AI writing, and more.
7. Ddict: AI Translation & Writing Assistant
Translate text and enhance writing with AI for seamless language learning and communication in your browser.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Translate text and enhance writing with AI for seamless language learning and communication in your browser.
8. Free Auto Text Expander for Google Chrome™
Create custom keyboard shortcuts to expand and replace text as you type!
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Create custom keyboard shortcuts to expand and replace text as you type!
9. Text to Speech for Google Chrome™
Want to listen to text being read out to you?
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Want to listen to text being read out to you?
10. Image Alt Text Viewer
Display alternative texts for images on a web page.
Why it replaces AI Detector & Grammar Checker: Covers similar ground in the Writing category: Display alternative texts for images on a web page.
Compare AI Detector & Grammar Checker head-to-head
Direct comparisons with the extensions people weigh against it.
Grammarly vs LanguageToolThe market leader against the open-source challenger with self-hosting and stronger multilingual support.Grammarly vs WordtuneCorrectness-first editing versus rewriting and tone control for the same sentence.LanguageTool vs WordtuneBoth are writing extensions people shortlist together — see how ratings, install base, pricing and day-to-day use differ.All comparisonsThe full compare hub, grouped by category.
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Frequently asked questions
What is the best alternative to AI Detector & Grammar Checker?
Grammarly is the closest match. Covers similar ground in the Writing category: Grammar, spelling and tone suggestions everywhere you write.
Is there a free alternative to AI Detector & Grammar Checker?
Yes — Magical: Text Expander & Autofill, MightyText - SMS from PC & Text from Computer, Justdone: GPT-4o AI Writing Assistant & Grammar Checker are free.