Check Commas in Context
Review comma placement after introductory phrases, around clauses, in lists, and before coordinating conjunctions when the sentence needs a pause.
FREE
Commas • apostrophes • sentence punctuation
Punctuation Checker - Fix Commas and Sentence Punctuation Free
Punctuation Checker
Paste your text to check punctuation mistakes such as missing commas, apostrophe errors, run-on sentence punctuation, quotation marks, periods, and semicolons. Use it when you need a focused punctuation review instead of a full rewrite.
Free punctuation checks
Punctuation Review
See a Punctuation Check
Original Text
Before we leave lets check the report.
The client said "send it today" but the file wasnt ready.
I reviewed the draft it still needs clearer punctuation.
Its a small edit but it changes the meaning.
Corrected Text
Before we leave, let's check the report.
The client said, "Send it today," but the file wasn't ready.
I reviewed the draft; it still needs clearer punctuation.
It's a small edit, but it changes the meaning.
What Was Fixed
Commas, apostrophes, and quotation punctuation corrected
Run-on sentence punctuation reviewed
A Focused Punctuation Checker for Clean Writing
Use this punctuation checker when you need a comma checker, apostrophe checker, semicolon review, or a quick answer to whether sentence punctuation looks correct.
Fix Apostrophes and Quotes
Catch common punctuation problems such as its versus it's, missing apostrophes in contractions, and quotation punctuation around direct speech.
Copy a Cleaner Version
Paste an email, paragraph, essay section, or message, run a punctuation-only check, then review and copy the corrected text.
How to Use the Punctuation Checker
Paste the Sentence or Paragraph
Use the exact text you plan to send or publish. The checker works best with complete sentences because punctuation depends on context.
Run a Punctuation-Only Check
The page starts in punctuation mode so commas, periods, apostrophes, semicolons, and quotation marks stay the main focus.
Review Before You Copy
Check the corrected text before using it. Punctuation can change tone and meaning, especially in lists, quotes, and complex sentences.
Punctuation Problems This Tool Reviews
A punctuation checker should explain the input, output, and limits clearly so users can judge each correction.
Comma Placement
After intro phrases, in lists, before but
Comma mistakes are the main reason people search for a comma checker. The tool looks for missing, extra, and misplaced commas.
- Introductory clauses
- Compound sentences
- Nonessential phrases
Apostrophes and Quotes
lets -> let's, wasnt -> wasn't
Apostrophes are easy to miss in contractions and possessives. Quotation marks also need clear punctuation when reporting speech or titles.
- Contractions
- Possessives
- Direct quotations
Sentence Breaks
Run-on sentence -> semicolon or period
When two complete thoughts run together, the checker may suggest a period, semicolon, or conjunction with a comma.
- Run-on sentences
- Comma splices
- Semicolon use
Punctuation Checker Examples
Use these examples to see the kind of corrections the page is designed to review.
Comma checker example
Original: If the file is ready send it today. Corrected: If the file is ready, send it today.
Apostrophe example
Original: Its important because the teams deadline changed. Corrected: It's important because the team's deadline changed.
Run-on sentence example
Original: I checked the draft it still needs work. Corrected: I checked the draft; it still needs work.
Quotation punctuation example
Original: She wrote "please review this" before lunch. Corrected: She wrote, "Please review this," before lunch.
What to Paste and What the Punctuation Checker Returns
The checker is most useful when the input is a complete sentence or paragraph. These examples show how punctuation-only review differs from a full grammar rewrite.
| Input situation | What gets checked | Best next step |
|---|---|---|
| Email, message, or report sentence with missing pauses | Comma placement after introductory phrases, before conjunctions, and around nonessential details. | Review the suggested commas, then keep or reject edits that change emphasis. |
| Sentence with contractions, possession, or quotes | Apostrophes in words like let's and wasn't, possessive nouns, and punctuation around direct speech. | Copy the cleaner sentence after confirming names, titles, and quoted wording are still accurate. |
| Two complete thoughts joined too loosely | Comma splices, run-on sentence punctuation, semicolon candidates, and places where a period is clearer. | Choose a period, semicolon, or conjunction based on the relationship between the ideas. |
Accuracy, Style, and Privacy Notes
Punctuation is partly rule-based and partly style-based, so review every correction before publishing.
Style differences
US and UK punctuation conventions can differ, especially around quotation marks. Choose the language setting that matches your audience.
Intentional voice
Short messages, marketing copy, poetry, and dialogue may use punctuation creatively. Keep intentional style choices when they fit the context, and use the suggested version as a proofreading draft rather than an automatic final answer.
Sensitive text
Avoid pasting passwords, private IDs, confidential client information, medical records, or legal secrets into any online correction tool.
Related Writing Tools
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Use the focused page when two complete thoughts are joined by only a comma.
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Purdue OWL Punctuation
Use this university reference when you want detailed punctuation rules and examples.
Punctuation Checker FAQ
Is this punctuation checker free?
Yes. You can paste text and check punctuation for free without creating an account. Review the result before copying it into your final document.
Can it work as a comma checker?
Yes. Comma placement is one of the main use cases. The checker reviews missing commas, extra commas, comma splices, and commas around clauses or lists.
Can it tell me if my sentence is punctuated correctly?
It can help you review likely punctuation problems, but you should still judge the final sentence. Punctuation depends on meaning, tone, and style guide preferences.
Does it check apostrophes?
Yes. It can review common apostrophe issues in contractions and possessives, including errors such as lets instead of let's or its instead of it's.
Should I use punctuation-only or full check?
Use punctuation-only when commas, apostrophes, periods, or semicolons are your main concern. Use full check when you also want spelling and grammar corrections.
Can punctuation corrections change the meaning?
Yes. A comma, period, or semicolon can change emphasis and meaning. Always review the corrected text before using it in school, work, or customer communication.
Can I use this as a sentence punctuation checker?
Yes. Paste the full sentence or paragraph so the checker can review commas, periods, semicolons, apostrophes, and quotation punctuation in context.
Is a comma checker enough for every punctuation problem?
No. Commas are common, but some sentences need a period, semicolon, colon, dash, or rewritten connector. Review the full punctuation suggestion before copying it.
What punctuation mistakes can this punctuation corrector find?
It can find missing or extra commas, apostrophe errors, comma splices, missing sentence endings, semicolon problems, and punctuation around quotations. Use a full grammar checker when sentence structure or word choice is also wrong.
Check Your Punctuation Before You Send
Paste your text above, review comma and punctuation corrections, then copy the cleaner version.
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