This product was not featured by Product Hunt yet. It will not be visible on their landing page and won't be ranked (cannot win product of the day regardless of upvotes).
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!
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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.
Notidem - the opposite of "idem was featured in Chrome Extensions (52.7k followers), Artificial Intelligence (471k followers), GitHub (41.3k followers) and LinkedIn (30.3k followers) on Product Hunt. Together, these topics include over 136.8k products, making this a competitive space to launch in.
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.
Want to see how Notidem - the opposite of "idem stacked up against nearby launches in real time? Check out the live launch dashboard for upvote speed charts, proximity comparisons, and more analytics.
Paul Pessoa