About Grammarlyzer
Grammar guides first, browser-based checking when you need it fast
Grammarlyzer is built for people who want quick answers to real grammar questions, not vague writing advice. We publish practical guides for common English mistakes and pair them with a free browser-based checker that helps you spot issues before you send an email, submit an essay, or publish client work.
The product has two jobs: explain the rule clearly, then help you apply it fast. That is why the site includes both learn pages and the live checker on the home page.
Who Grammarlyzer Is For
Professionals
Use the checker before sending business emails, reports, proposals, or client messages that need to read cleanly on the first pass.
Learners
Use the guides when you need the rule behind mistakes like its vs it's, then vs than, or comma rules.
Teachers and Tutors
Use the comparison tables, examples, and short explanations as fast teaching references for recurring student errors.
Privacy-Conscious Writers
Your text stays in the browser while you use the checker. The privacy details are documented on our privacy page.
How We Create and Review Guides
1. Start With Search Intent
2. Write the Rule in Plain English
3. Use Automation Only for Repetition
4. Recheck Links and Search Signals Before Publish
How the Checker Fits the Lessons
The checker is best for catching obvious issues quickly. The guides are best for understanding patterns that repeat in your writing. If the checker flags a sentence and you want the rule behind it, the next stop should usually be Common Mistakes, Guide, or the relevant lesson inside Learn.
- Fast feedback: Use the checker when you need to clean up text right now.
- Rule memory: Use the guides when the same error keeps coming back.
- Low-friction workflow: Checker first, then lesson, then final pass.
Best Pages to Start With
Common Grammar Mistakes
Start here if you want one page that covers the highest-frequency errors.
→How to Use the Checker
Learn when to rely on the checker and when to open a full grammar lesson.
→Business Email Vocabulary
Useful if your traffic comes from workplace writing and email cleanup.
→Comma Rules
A strong starting point for punctuation questions that show up in many documents.
→Academic Writing Words
Helpful for essays, research summaries, and precise explanation-heavy writing.
→Movement & Direction Words
Useful when users need fast clarity on direction, comparison, or viewpoint-driven choices.
→Ready to See the Product?
Open the checker for a fast pass, then use Learn when you need the rule behind the correction.
Try Grammar Checker Free