Punctuation Checker AI: Commas

Punctuation Checker AI: Commas

TextAdviser

Available on Google Play
4.4(12,950)
500,000+ installsFreeEducation

Updated Oct 17, 2026 · v4.6.4

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Fix commas, run-on sentences and punctuation in any text with one tap

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.

Released
March 4, 2021

5 years on Google Play

Version
4.6.4
Updated
Oct 17, 2026
Content Rating
Everyone
Installs
500,000+
Developer
TextAdviser
Website
https://textadviser.com/en/grammar-checker
Email
admin@textadviser.com
In-app purchases
No

This app isn't currently appearing in any tracked top charts.

Rating breakdown

5★
9,435
4★
1,757
3★
370
2★
185
1★
1,017