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 - Check Commas Free
Paste a sentence or paragraph into this punctuation checker to review commas, apostrophes, sentence breaks, quotation marks, periods, and semicolons. Use punctuation-only for a focused check or full check for grammar too.
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
Punctuation Checker for Commas and Sentence Clarity
A punctuation checker is most useful when it shows likely fixes in context. Paste the text you plan to send, review the output, and keep the choices that preserve your meaning.
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 a main reason people search for a comma checker. Review missing, extra, and misplaced commas in complete sentences rather than isolated fragments.
- 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. This shows why a comma checker needs the whole sentence.
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. |
Punctuation Checker Limits, Style, and Privacy
Punctuation combines rules and style. Review every suggestion in the complete sentence before publishing or sending it.
Style differences
US and UK punctuation conventions can differ, especially around quotation marks. Choose the language setting that matches your audience.
Intentional voice
Messages, marketing copy, poetry, and dialogue may use punctuation intentionally. Keep a stylistic choice when it fits your meaning.
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.
Gmail Spell Check
Use this page when the text is an email draft and you need a final pre-send review.
French Spell Checker
Use the French page when accents, French spelling, and French grammar are the main issue.
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 use the free punctuation checker to review commas, apostrophes, sentence breaks, and quotation punctuation without creating an account.
Can it work as a comma checker?
Yes. Comma checking is a main use case. The tool reviews missing, extra, and misplaced commas, including commas around clauses and lists.
Can it tell me if my sentence is punctuated correctly?
It can identify likely punctuation problems, but you should judge the final sentence in context because meaning, tone, and style guide choices matter.
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 a full check?
Use punctuation-only when commas, apostrophes, periods, or semicolons are the focus. Use full check when you also want spelling and grammar suggestions.
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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