AI LinkedIn Caption Grammar Checker — Free Tool
Check a LinkedIn caption for spelling, grammar and punctuation — and nothing else. Your voice, emoji and line breaks stay exactly as written.
Real examples
Actual output from the assistant for LinkedIn.
LinkedIn is where a typo costs something concrete, because the post is attached to your professional identity and read by people deciding whether to answer your email.
Features
- Corrects spelling, grammar and punctuation only
- Leaves your voice, emoji, hashtags and line breaks alone
- Returns the caption unchanged when it is already correct
- Runs at a low temperature so it cannot drift into rewriting
How it works
- Paste the caption you already have. These three tools work on your draft rather than on a brief — your wording is the input, not a topic.
- Press Generate. It runs right here — no account, no card, three times a day.
- Need more? A free account raises the limit to 50 AI generations a month.
- It also moves generation into the composer, next to your channels and schedule — several variants per platform, then edit and schedule without leaving the page.
What you get free
Three generations a day on this page, with no account at all. Signing up is free and raises it: the Free plan includes 50 AI generations a month, Pro includes 300 and Business includes 1000 — and you can buy credits on any plan if you run out.
The reason to sign in isn't the limit, it's the workflow: generations happen where your drafts, channels, and schedule already are, so you go from brief to scheduled post without copying text between tabs. This page gives you one variant; the composer gives you several, plus improve, shorten, expand, and tone.
Getting better output
- Paste the whole thing. Half a caption gives it half the context, and it will fill the gap with something you didn't write.
- Use the per-platform page, not the general one. The platform changes the length, the register, and in some cases the rules the result has to obey.
- Run it more than once. Each run is independent, and the second attempt on a sharper brief usually beats editing the first.
- Treat it as a first draft. The fastest workflow is generate, then change one line — not generate and paste.
Frequently asked questions
What does the grammar checker change on LinkedIn?
LinkedIn is where a typo costs something concrete, because the post is attached to your professional identity and read by people deciding whether to answer your email. LinkedIn posts allow 3,000 characters, and editing a published post keeps its existing reactions and comments.
Do I need an account?
No — you get 3 free generations a day right on this page, no signup. A free account lifts the limit: the Free plan includes 50 AI generations a month, Pro includes 300 and Business includes 1000, or you can buy credits on any plan.
