Will it change my wording?

No. The Punctuation Checker only fixes punctuation and sentence-start capitalization — your words stay the same.

Does it fix apostrophes?

Yes. It corrects contractions and possessives, including the common its/it's mix-up.

Yes, it's completely free to use in your browser.

Punctuation Checker

Fix commas, apostrophes, periods, quotation marks and capitalization across your writing — with clear explanations and no changes to your wording.

Updated July 10, 2026 6 min read

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About the Punctuation Checker

Punctuation is small but powerful — a missing comma or misplaced apostrophe can change your meaning or make writing hard to read. The AllWordTools.com Punctuation Checker scans your text, fixes the punctuation, and explains each change while leaving your words exactly as they are.

It's great for emails, essays, captions and reports where clean punctuation signals care and professionalism. You get a corrected version plus a list of every fix so you can learn the rules behind them.

The tool is free, browser-based and handles long passages instantly.

How to use the Punctuation Checker

1
Paste your text
Add the writing you want to punctuate correctly.
2
Run the check
Press Check punctuation and the AI reviews every mark.
3
Review the fixes
See each punctuation change with a short explanation.
4
Copy the result
Copy the correctly punctuated version to use anywhere.

The punctuation this tool fixes

The checker handles commas (including comma splices and missing commas), apostrophes (its vs it's, plural vs possessive), periods, question and exclamation marks, quotation marks, hyphens and dashes, semicolons and colons, and capitalization at the start of sentences.

A famous example — "Let's eat, Grandma" vs "Let's eat Grandma" — shows how one comma changes everything. The tool catches exactly these meaning-shifting mistakes.

Punctuation only, wording untouched

The Punctuation Checker deliberately leaves your words alone. It won't reword sentences or change your style — it only adjusts the punctuation and sentence-start capitalization. That makes it a safe, focused pass you can trust.

For a deeper edit that also fixes grammar and clarity, follow up with the AI Grammar Checker.

Examples

Input

lets eat grandma

Sample output

Let's eat, Grandma.

An apostrophe, a comma and capitalization change the meaning.

Input

Its been a great day.

Sample output

It's been a great day.

"It's" is the contraction of "it is".

Input

I bought apples oranges and pears.

Sample output

I bought apples, oranges and pears.

Commas separate items in a list.

Pro tips

Read tricky sentences aloud — a natural pause often marks where a comma belongs.
Remember: "it's" means "it is"; "its" shows possession.
Use the explanations to master the rules, then you'll need the tool less over time.

Questions & answers

Punctuation Checker FAQs

The AllWordTools.com Team

Word-game specialists and language enthusiasts building fast, accurate tools that help millions of players find the right word. Last reviewed July 10, 2026.