Free Sales Email Grader

Free LinkedIn message checker

LinkedIn Message Checker

Paste your LinkedIn connection note or first message. See whether it reads like a real note to one person, with plain-English fixes and the sources behind each check.

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  • Free, no sign-up
  • Nothing you type is stored
  • Every rule shows its source

What the LinkedIn Message Checker checks

Each check is explained in plain words. Checks based on research link to the source. The rest are labeled as writing practice.

Fits the connection note limit

LinkedIn cuts off the note on a connection request at a set number of characters. The checker shows your count so you can trim it.

LinkedIn, 2026

Says how you found them and why now

LinkedIn's own advice is to say how you found the person or what you have in common, and why you want to connect now.

LinkedIn, 2026Belkins, 2026

Written for one person

In LinkedIn's data, messages written for one person got more replies than bulk ones. That data comes from recruiters, not sellers, so treat it as a direction.

LinkedIn, 2022

One clear, easy ask

LinkedIn's writing advice is one clear ask, because several questions make replying harder. This is advice, not a measured result.

LinkedIn, 2025

A specific first line, no pitch

Open with something specific about them and save the pitch for later. This is LinkedIn's writing advice, not a measured result.

LinkedIn, 2025LinkedIn, 2026

Short enough for a phone

Short messages did better in LinkedIn's recruiter data, and LinkedIn advises keeping messages short enough to read on a phone.

LinkedIn, 2022LinkedIn, 2025

Uses what you know about them

Only when you add notes. The message should use one real detail from them.

LinkedIn, 2026

Spelling and grammar

A clean note, with each issue quoted from your words. This is a writing practice.

Writing practice

Questions

Should I add a note to a LinkedIn connection request?

Either choice is fair. A blank request is fine. A short note that says how you found them and why you are reaching out tends to start more conversations later.

How long can a LinkedIn connection note be?

LinkedIn's help page lists a limit of 200 characters for the note, as of September 2026. Limits change, so check LinkedIn's help page if a note will not send.

Should I pitch in my first LinkedIn message?

Usually not. Start with why you are reaching out and something about them. Once they reply, there is room to talk about what you do.

Is it free? Do you store my message?

It is free with no sign-up, and nothing you type is stored.

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LinkedIn Message Checker: Free Connection Note and Message Grader