Comma checker
Find missing commas, comma splices, extra commas, and list punctuation problems.
Free Punctuation Checker
Paste a sentence, email, essay paragraph, or draft and check punctuation, grammar, spelling, and clarity before you send it.
What the punctuation checker reviews
Review commas, sentence endings, quotation marks, apostrophes, grammar, and spelling in one quick pass.
Apostrophes
Catch possessives, contractions, and common its versus it’s mistakes.
Quotation marks
Check opening and closing quotes, punctuation inside quotes, and quoted questions.
Sentence punctuation
Review periods, question marks, exclamation points, and sentence boundaries.
Dashes and hyphens
Spot places where a hyphen, en dash, or em dash changes meaning or readability.
Grammar and spelling
Use punctuation as the entry point, then continue into grammar, spelling, and rewrite work in Kollab.
Common punctuation mistakes
Use these examples to recognize punctuation problems before they make a draft harder to read.
Comma splice
She loves to read, he loves to write.
She loves to read; he loves to write.
Two independent clauses need a semicolon, period, or conjunction.
Missing comma
I finished the draft but forgot the title.
I finished the draft, but forgot the title.
A comma often belongs before a coordinating conjunction.
Possessive apostrophe
The students’s papers are ready.
The students’ papers are ready.
Plural possessives usually place the apostrophe after the s.
Unclosed quote
She said, "Send the final version.
She said, "Send the final version."
Every opening quotation mark needs a matching close.
How to check punctuation online
Keep the first action fast, then move deeper edits into a reusable Kollab task when the draft needs more than a quick fix.
01
Paste your text
Add a sentence, paragraph, email, essay excerpt, or resume line to the checker.
02
Review suggestions
Scan punctuation, grammar, spelling, and sentence-level clarity suggestions.
03
Continue in Kollab
Turn the checked text into a rewrite, proofread document, or saved editing task.
Who should use it
Use it when a draft needs to be clean, readable, and ready to send.
Students
Check essays, class assignments, applications, and research notes before submission.
Professionals
Polish emails, resumes, reports, proposals, and client-facing messages.
Non-native English writers
Use a quick punctuation pass before asking Kollab for tone, clarity, or rewrite support.
Creators and marketers
Clean up captions, blog paragraphs, scripts, and social copy before publishing.
Punctuation checker FAQ
Is this punctuation checker free?+
Yes. The page offers a free preview for common punctuation issues. You can continue into Kollab when you want a deeper proofread or rewrite workflow.
Does it check grammar and spelling too?+
The checker starts with punctuation, and Kollab can continue with grammar, spelling, clarity, tone, and rewriting suggestions.
Can it fix commas?+
Yes. The checker is designed around common comma issues such as missing commas, comma splices, list punctuation, and unnecessary commas.
Can I use it for essays?+
Yes. It is useful for essay paragraphs, application writing, resumes, emails, reports, and other English drafts.
Is using a punctuation checker cheating?+
A punctuation checker is a proofreading aid. It helps you find mechanical writing issues and does not replace your own argument, research, or original writing.
Is this an AI punctuation checker?+
The preview explains common punctuation fixes immediately, and Kollab can use AI to perform a richer proofreading pass when you continue the task.
Check punctuation beforeyour draft leaves your hands
Paste text, review likely punctuation issues, then continue into Kollab for a complete proofread or rewrite.