SuperBrain

What it does

SuperBrain is your self-hosted, AI-powered second brain for Android. Stop losing content in siloed watch-later lists. Share any URL from IG, YouTube, or the web SuperBrain automatically analyzes, summarizes, and tags it in seconds. Features include native YouTube understanding, music ID from reels, and audio transcription. Everything is stored in a local SQLite database YOU own. No subscriptions, no data harvesting. Just smart discovery and organization on your own terms.

SuperBrain — AI-powered save-it-later brain for Instagram, YouTube & Web - sidinsearch/superbrain

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  Superbrain For macOSAug 2026 · onesuperbrain.com · ▲75

  Most Efficient Agentic Coding Environment

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  Second Brain2025 · second-brain-lac-ten.vercel.app · ▲281

  Hi HN, I'm Dom, a solo founder. I built Second Brain to solve a common issue I had with AI chats: the knowledge disappears. There’s no structure, no memory, and no way to reuse or build on them. So I built a tool that combines AI chat with a visual, interconnected knowledge system. Key features: - Save AI responses into editable docs (Notion-style Pages). - AI Visual board with multiple content & chat nodes (like Miro meets ChatGPT). - Add and chat with YouTubes, TikToks, Audio, PDFs, GitHub repos, Looms, websites, etc. - Organize using Projects and Smart Tags — then chat with full contexts.…

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  Second Brain for AIMay 2026 · github.com · ▲286

  Persistent memory for Claude, ChatGPT & Cursor. Free.

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  SuperBot2023 · getsuperbot.io · ▲114

  Build an AI GPT chatbot trained on your own data in minutes.

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  myReach2023 · myreach.io · ▲285

  Your second brain, powered by AI – ChatGPT for your things

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  Zeno2025 · youzeno.com · ▲244

  Hey guys well basically…yeah…I hate GoogleNoteLLM and other AI YouTube Summarizers. They feel meh…boring. I actually like youlearn.ai but it’s built for students. So, as a builder. I built my own AI YouTube Curator, Zeno, and hit #1 Product of the Week on Product Hunt. What I can say is that Zeno is your AI-powered second brain for YouTube. Ah, btw now it’s fully optimized for mobile, with the most evolutionary features in the AI YouTube summary space yet. The best part? Since this last update, I’ve stopped using YouTube. I only Zeno. With Zeno 2.0 on mobile, you can: Import your favorite…

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  /dev/null▲487

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Brila▲1,364

  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

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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