Grammar & Punctuation Checker
Paste your text to instantly catch common issues: double spaces, repeated words, missing capitalization, and more.
About this grammar & punctuation checker
A lightweight, transparent first pass before you submit or publish something, catching the kind of small slips that are easy to miss when proofreading your own writing.
How grammar & punctuation checker works
The text is scanned with straightforward, visible rules, checking for double spaces, immediately repeated words, missing spaces after periods, and a lowercase standalone "i".
Common uses
- A quick pass before submitting an email or document
- Catching double spaces and repeated words before publishing
- Checking a draft before running it through a more thorough review
How to use this tool
- Paste your text.
- Click Check Text.
- Review the issues found.
What to know before using it
This is a basic, rule-based checker, not a full AI grammar engine, it catches obvious mechanical issues but will not catch subtler grammatical or stylistic problems the way a dedicated grammar service might.
Privacy and browser-first processing
Your text is checked entirely in your browser and is never uploaded or stored, safe to use even with confidential drafts.
Frequently asked questions
Does this catch every grammar mistake?
No, this is a lightweight, rule-based checker for common mechanical issues, not a comprehensive AI grammar engine, use it as a quick first pass, not a final proofread.