Painstack.ai

What it does

Painstack searches Reddit, Hacker News, YC startups, and Product Hunt before scoring your idea 0–100. You get a BUILD / REFINE / KILL verdict grounded in real market signals, not AI opinion. If it's worth building: Market Agent maps real competitors, CEO builds your 90-day roadmap, CMO finds where your ICP is asking for help today, CTO generates 12 execution PRPs ready for Lovable or any AI IDE to start building. From Ideia to first paying customer.

Validate your startup idea with real evidence from Reddit and Hacker News. Get a 0–100 score, a BUILD / REFINE / PIVOT verdict, and a full blueprint.

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  FiftycoreJul 2026 · fiftycore.com · ▲18

  Stop Guessing Start Building

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  PainPoints.fastJan 2026 · astrochart.ai · ▲19

  Validate Your SaaS Idea with Real Pain Points

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  Test Your IdeaFeb 2026 · preuve.ai · ▲23

  Test your business idea before you build. Market validation with real data on competitors, demand, and viability from 60+ live sources. Free 60-second scan.

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  IdeaCheckMar 2026 · ideacheck.cc · ▲3

  AI validates your startup idea with real market data

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  IdeaHuntMar 2026 · ideahunt.online · ▲14

  Destroy bad ideas before you build

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  Vibe CheckerJan 2026 · justart.today · ▲3

  Worth building? Validate ideas before coding

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  Spira Maxima▲578

  Video model that turns script into viral social media videos

  AI · 18d ago · spira.ai

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  Rill Browser▲540

  The browser where Claude Code and Codex work beside you

  AI · 18d ago · rill.love

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  Germany's new sovereign AI model Kolibri▲424

  Kolibri is Aleph Alpha

  AI · 20d ago · tej.as

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  Giving Opus 5.5 a simulated paint canvas▲392

  Paintings by AI models: programs run through a simulation of oil paint.

  AI · 21d ago · stillwet.art

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  PixVerse R2▲381

  A real-time world model you can explore and change

  AI · 30d ago · world.pixverse.video

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  Beam.win▲378

  Run AI agents on one Mac and use its windows on another

  AI · 4d ago · beam.win

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  Brila▲1,364

  One-page websites from real Google Maps reviews

  AI · Apr 2026 · brila.ai

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  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

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  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

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  Fathom 3.0▲800

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

  AI · Apr 2026 · fathom.ai

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  Brutalist Concrete Laptop Stand (2024)▲786

  I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay

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

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  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