Free AI Punctuation Checker
Fix commas, apostrophes, quotation marks, capitalization and every other punctuation slip in one click — without changing your words.
Why use this punctuation checker?
How to use the punctuation checker
Paste your text
Add the text whose punctuation you want checked.
Click “Fix Punctuation”
The AI corrects commas, apostrophes, quotes, dashes and capitalization — nothing else.
Copy the clean text
Review the corrections (or use the explanations mode to see the rules) and copy the result.
About this punctuation checker
Punctuation is where careful writing shows. A misplaced comma changes meaning, a missing apostrophe undermines credibility, and inconsistent quotation marks make prose look unedited. This free punctuation checker fixes all of it — commas, periods, semicolons, apostrophes, quotes, dashes, spacing and capitalization — while leaving your actual words untouched.
That restraint is the point. When your wording is final — a pull quote, a legal paragraph, a poem, a finished essay — you don't want a checker silently rephrasing things. This tool is constrained to punctuation mechanics, so what you wrote stays exactly what you wrote, just correctly punctuated.
Use the “With explanations” mode to see the rule behind each fix. It's the fastest way to finally internalize comma splices, serial commas and the eternal its/it's distinction.
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