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Notidem - the opposite of "idem
Genuine LinkedIn replies in your own voice, via AI
Most LinkedIn replies are "great post!" — meaningless and forgettable. Notidem helps you write specific, thoughtful comments and message replies in your own voice, based on your profile and the post context. You always review and send — it never posts on your behalf. Free, open-source, no account needed. Bring your own AI key.
Hey Product Hunt! I'm Paul, a software engineer from Brazil, and I built Notidem solo as a side project.
The idea came from a personal frustration: I'd read genuinely interesting posts on LinkedIn and want to add something meaningful to the conversation — but the friction of writing a thoughtful reply from scratch meant I'd often just scroll past. The result? A feed full of "great post!" and "totally agree" comments that add nothing.
Notidem is my answer to that. It's a Chrome extension that reads the post (or message thread) in front of you, combines it with a short profile you write about yourself, and drafts a reply in your voice — specific, human, and relevant. You always edit and post it yourself. It never acts on your behalf.
It's free, open-source (MIT), no account needed, and you bring your own AI key — so nothing touches my servers.
Happy to answer any questions about how it works, the privacy model, or what's coming next. Thanks for checking it out!
About Notidem - the opposite of "idem on Product Hunt
“Genuine LinkedIn replies in your own voice, via AI”
Notidem - the opposite of "idem was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #146 on the daily leaderboard. Most LinkedIn replies are "great post!" — meaningless and forgettable. Notidem helps you write specific, thoughtful comments and message replies in your own voice, based on your profile and the post context. You always review and send — it never posts on your behalf. Free, open-source, no account needed. Bring your own AI key.
On the analytics side, Notidem - the opposite of "idem competes within Chrome Extensions, Artificial Intelligence, GitHub and LinkedIn — topics that collectively have 595.2k followers on Product Hunt. The dashboard above tracks how Notidem - the opposite of "idem performed against the three products that launched closest to it on the same day.
Who hunted Notidem - the opposite of "idem?
Notidem - the opposite of "idem was hunted by Paul Pessoa. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Notidem - the opposite of "idem including community comment highlights and product details, visit the product overview.
Paul Pessoa