How to fix grammar on LinkedIn posts, comments and messages

A short guide, updated November 2026

A typo in a LinkedIn post stays visible to everyone who sees it. Caret corrects grammar, spelling and punctuation in LinkedIn's post editor, comment boxes and messages as you write, without changing your voice.

Steps

Add Caret to Chrome from the Chrome Web Store.
Open LinkedIn and start a post, a comment or a message. If LinkedIn was already open and nothing happens, refresh the tab once.
Write and pause for about a second. Caret fixes what you just wrote, in place.
Review the small note showing what changed, then post. Undo is one click.

Fix grammar in LinkedIn without clicking.
Add Caret to Chrome, free

Good to know

It works in the post composer, comments, replies and LinkedIn messages.
It keeps your phrasing. Caret won't turn your post into generic AI-sounding text.
Hashtags, @mentions and links are left as they are.

Questions

Does LinkedIn check grammar?

LinkedIn relies on your browser's spell check, which underlines words but doesn't fix grammar. A Chrome extension like Caret corrects grammar and spelling automatically as you type.

Will Caret rewrite my LinkedIn post?

No. Caret only fixes grammar, spelling and punctuation, and leaves your text alone if a fix would change too many words.

Is it free?

Caret is free during the beta. After that there's a free plan with a daily number of fixes, and a paid Pro plan.

Also see: a Grammarly alternative that fixes automatically, fix grammar in Gmail, fix grammar in WhatsApp Web.