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ReplyKit

Finds the posts worth replying to and drafts three replies in your voice. You post them yourself, always.

Product

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  • X reply generator
  • LinkedIn comment generator
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  • Built by Frédéric Legrand

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Not affiliated with X, LinkedIn or Reddit

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Free tool · LinkedIn comment generator

Free · no sign-up · no API key

Free LinkedIn
comment generator.

Paste a LinkedIn post and get three comments that add a point of view, an example or a real question. Written for LinkedIn's register, not as tweets. No account needed.

Opens the ReplyKit web app with your post filled in. It never touches your LinkedIn account.

How it works

  1. 01

    Paste the post

    Copy the text of the LinkedIn post. If it is long, the part you want to react to is enough.

  2. 02

    Pick a comment

    Three drafts, each taking a different angle: build on the point, offer a counterexample, or ask the author something specific.

  3. 03

    Make it yours

    Add a detail from your own work, then post it on LinkedIn yourself. ReplyKit does not post, like or connect for you.

Want it inside the site?

The ReplyKit Chrome extension puts the same drafts under the reply box on X, LinkedIn and Reddit, reads the thread for you, and on X marks which posts are worth answering.

Add to Chrome, free →

What makes a LinkedIn comment worth writing

  • Comment on posts in your field, from people your future clients or colleagues already read.
  • Lead with your point, not with praise. The author already knows you liked it.
  • Bring one concrete thing: a result you saw, a mistake you made, a tool you used.
  • Two to four sentences is plenty. A comment that needs "see more" rarely gets opened.
  • End with a question only when you actually want the answer.

Questions

Is the LinkedIn comment generator free?+

Yes. Free replies every day without an account: 10 on your first day, then 3 a day, or 5 a day with a free sign-in. Pro is €6.99 a month for 1,000.

Is using AI for LinkedIn comments against the rules?+

LinkedIn's rules target automation: bots that post, like or connect for you. ReplyKit only writes a draft. You read it, edit it and post it by hand, the same as writing it yourself.

Will the comment sound generic?+

It is written against the generic patterns: no "Great insights!", no restating the post, no buzzword lists. Each draft takes a position on something the post actually says.

Can I use it directly in the LinkedIn feed?+

Yes. The ReplyKit Chrome extension adds the same drafts under LinkedIn's comment box, so you never leave the feed.

Does it work in languages other than English?+

Yes. It comments in the language of the post.

Other free generators

  • X reply generator →
  • Reddit reply generator →

Guides

  • How to grow on X with replies: a daily routine that works →
  • How to make AI replies not sound like AI →
  • AI reply tools for X, LinkedIn and Reddit: an honest roundup →
← Back to ReplyKitAdd to Chrome, free →