Punctuation Checker AI: Commas

Paste your text and get commas, periods and capital letters in the right places in seconds. Punctuation Checker finds missing commas, run-on sentences and comma splices and highlights every fix right in your text. Tap any fix to see what changed or undo it.

Check an essay, an email or a message before you send it.

What it does

• Punctuation checker: adds missing commas, periods, question marks and other punctuation marks.

• Comma checker: commas after introductory words, before conjunctions, around clauses and in lists.

• Run-on sentences and comma splices are split or joined correctly.

• Capital letters at the start of sentences.

• Autocorrect rewrites sentences with grammar and spelling mistakes into clear, natural English. Every change is highlighted, and you can restore the original.

• Spelling: finds typos and suggests the right word. Fix one word or all of them at once.

• Compare the original and the corrected text.

Made for

• Students: essays, homework, college applications and English as a second language.

• Work: emails, reports, resumes and cover letters.

• Everyday writing: messages, posts and comments.

Easy to use

• Paste text, type it or dictate it.

• Open a PDF, DOCX or TXT document.

• Listen to your text read aloud.

• Copy or share the corrected text.

• History keeps your checks on your phone, with search and favorites.

Languages

English, Portuguese, Spanish, French, German, Italian and Russian. The app tells you if your text is in a different language from the one selected.

Free and PRO

Free checks every day: up to 1,000 characters per punctuation or spelling check and up to 2,000 characters for autocorrect.

PRO removes ads and the daily limit and checks texts up to 200,000 characters. Long texts are checked in parts, and you see the progress.

Privacy

Your text is sent only to check it. You can turn off saving texts and history in the settings.

Punctuation Checker is made by TextAdviser. If a fix is wrong, write to us — we read every message.