Sublookout

What it does

Hey PH! I built Sublookout after spending way too much time manually checking Reddit for mentions of my own projects. It monitors any subreddit 24/7 and pings you the moment a matching post appears — great for finding leads, tracking competitors, or catching brand mentions. Use code PRODUCTHUNT for 20% off. Happy to answer any questions!

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  Notikey2024 · ▲128

  Get notified when your keywords are mentioned on Reddit

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  SubSignalDec 2025 · ▲27

  Track mentions & find leads on Reddit in real-time.

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  Phey2017 · ▲128

  Keep an eye on your (Upcoming) Product's subscribers/votes 📈

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  Popsy2024 · ▲60

  Find Reddit discussions where you can promote your product

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  B2B Leads FinderJun 2026 · celerflow.ai · ▲4

  Buying signals on Reddit, X & LinkedIn + 1-click replies

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  Compeddit — Reddit Competitor MonitorMar 2026 · ▲9

  Earn a customer everytime your competitor gets mentioned

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  Browzer▲427

  Put your technical content on autopilot

  Growth · 14d ago · trybrowzer.com

• 
  AstraPixels▲267

  ​​A pixel-art solar system at its real current positions.​

  Growth · 29d ago · astrapixels.com

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  Brila▲1,367

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

• AG
  A game where you build a GPU▲964

  Thought the resources for GPU arch were lacking, so here we are

  Life & fun · Apr 2026 · jaso1024.com

• IB
  I built a tiny LLM to demystify how language models work▲915

  Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.

  AI · Apr 2026 · github.com

• 
  Fathom 3.0▲803

  AI meeting notes: now bot-free, in ChatGPT & Claude + more

  AI · Apr 2026 · fathom.ai

• BC
  Brutalist Concrete Laptop Stand (2024)▲786

  Life & fun · Apr 2026 · sam-burns.com

• IB
  I built a frontpage for personal blogs▲783

  With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.

  AI · Apr 2026 · text.blogosphere.app