Letter Moth

Best AI LinkedIn Message Generators Compared (2026 Guide)

The best AI LinkedIn message generator is the one that matches how you actually work. If you want a general-purpose writing partner, a chatbot like ChatGPT, Claude or Gemini is hard to beat. If you want a short note drafted from the profile you have open, inside the box, trimmed to the character limit, a browser extension is the more convenient route.

This roundup covers five realistic options for connection notes, replies and follow-ups: general AI assistants, LinkedIn's own built-in message help, Letter Moth, LinkedIn growth tools like Taplio, and automation tools like Waalaxy. We make Letter Moth, so we have a bias, and we will say plainly where another option is the better pick.

AI LinkedIn message options at a glance
OptionBest forSees the page for youSends for you
Letter MothShort drafts in the box, limit-awareYes, on click, you review it firstNo, never
ChatGPT / Claude / GeminiFlexible drafting and brainstormingNo, you paste contextNo
LinkedIn built-in AI helpQuick drafts without installing anythingCheck availability on your accountCheck on LinkedIn
Taplio / ShieldContent and audience growthCheck whether they draft messagesNot their focus
Waalaxy / Dux-Soup / ExpandiAutomated outreach sequencesNot a drafting toolAutomate actions (check LinkedIn's rules)

What should an AI LinkedIn message generator actually do?

Before comparing tools, it helps to decide what you need. Most people searching for an AI LinkedIn message generator want one of three things: a first draft they can edit, a way to avoid the blank box, or a way to personalize without spending ten minutes per profile.

A good tool should respect a few practical limits. Connection notes have a tight character limit, replies need context from the thread, and the message has to sound like you. A generic paragraph that could be sent to anyone is the main thing recipients ignore.

  • Context: can it see the profile or thread you are looking at, or do you paste it in?
  • Fit: does it respect the character limit of the box?
  • Voice: does it learn who you are, or does every draft sound the same?
  • Control: do you review and send, or does it act for you?
  • Cost: is there a free tier, and how is paid billing handled?

Letter Moth: drafts from the page you have open

Letter Moth is a Chrome extension (it also works in Edge, Brave and Opera, but not Firefox or Safari). You sign in with Google and write a short profile of yourself once. When you are on a LinkedIn profile or message thread, you click the toolbar button, review the page context it will use, untick anything you do not want included, and pick a tone: natural, professional, casual, warm or concise.

It reads the character limit of the box, trims the draft to fit, and inserts the text for you to edit. It never sends anything and never clicks for you. The free plan gives you 10 drafts a day with 3 saved prompts and no card. You can try it on the LinkedIn message generator page.

What it does not do: no bulk sending, no scraping, no automation, no CRM and no sequences. If you need volume tooling or analytics, it is the wrong choice.

ChatGPT, Claude and Gemini: the flexible general assistants

General AI assistants are the most flexible option. You can paste a profile, describe your goal, ask for five variations, and keep refining in the same conversation. They are also excellent for brainstorming angles, rewriting a clumsy paragraph and role-playing the recipient. Most have a free tier, so check each provider's site for current limits.

The trade-off is workflow. You copy text out of LinkedIn, paste it in, write your own prompt, then copy the result back and check the length yourself. You also have to remember to describe your background every time unless you use a saved instruction feature. If you send a lot of messages, that friction adds up. If you send a few important ones a week, a chatbot is probably all you need.

LinkedIn's built-in AI message help

LinkedIn has added AI writing assistance in some places on the platform. The upside is obvious: it is already where you are, with no install. The limits are availability and scope. Check whether the feature is offered on your account and plan, and whether it covers the situations you care about, such as connection notes versus long messages.

If the built-in option gives you drafts you are happy with, there is no need to add another tool. People tend to look elsewhere when they want more control over tone, want the same drafting on email and job applications, or want a saved voice profile.

Taplio and Shield: growth and content tools

Taplio and Shield are best known as LinkedIn growth and analytics tools, with a focus on content and audience. They are a different category from a message generator. If your goal is posting consistently and tracking how your posts perform, they are worth a look. If your goal is writing a better connection note, check whether they offer message drafting at all before paying for them.

Waalaxy and other automation tools

Waalaxy, Dux-Soup and Expandi are automation tools. They are designed to run outreach sequences at scale. That is a different job from drafting one thoughtful message, and it carries a different risk profile: LinkedIn's rules place restrictions on automation, so read the current LinkedIn User Agreement before using any of them. Letter Moth deliberately does no automation.

We compare the two approaches in more detail in LinkedIn automation tools vs AI drafting assistants.

How do I choose the right AI LinkedIn message generator?

Match the tool to your volume and your tolerance for control. If you send under a dozen thoughtful messages a day and want to stay in charge, a drafting assistant or chatbot is enough. If you want drafts inside the box with limits handled for you, try an extension. If you need thousands of touches, you are in sequencing territory, which is outside what a drafting tool should do.

Whatever you pick, edit the draft. A message that mentions something specific and real about the person, then asks one small question, tends to read better than any template. No tool can promise a reply rate.

Products change often. Treat this page as a starting point and check each tool's own site for current features, limits and pricing before you decide.

Want to try Letter Moth next to the others? Add it to Chrome for free: 10 drafts a day, no card needed.

Try Letter Moth free

Drafts a LinkedIn note, cold email or application answer from the page you are on. You edit it and press send. 10 drafts a day are free, no card needed.

Add to Chrome, it's freeSee the install steps

Frequently asked questions

What is the best AI to write LinkedIn messages?

There is no single best. A general assistant like ChatGPT, Claude or Gemini is the most flexible. A browser extension like Letter Moth is more convenient if you want drafts inside the message box that fit the character limit. Pick based on how often you write and how much control you want.

Can AI write a LinkedIn connection request?

Yes. Most tools can draft a short note. The harder part is making it specific and keeping it under the limit. Our guide to writing a connection request message walks through the structure.

Is it safe to use AI for LinkedIn messages?

Drafting tools that leave sending to you are generally a lower-risk approach than automation. Read LinkedIn's current User Agreement, and see our piece on whether it is safe to use AI for LinkedIn messages.

Is there a free AI LinkedIn message generator?

Several options have free tiers, including the major chatbots and Letter Moth, which gives you 10 drafts a day on the free plan with no card. Check each tool's site for current limits.

Does Letter Moth send messages automatically?

No. It inserts a draft into the box and you review and send it yourself. It does not click, schedule or automate anything.

Keep reading