Second Brain
Second Brain is a free for creating and sharing content
Second Brain launched on December 2, 2024 with 11 votes, #1,640 of 5,365 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
𝗦𝗲𝗰𝗼𝗻𝗱 𝗕𝗿𝗮𝗶𝗻: An open-source and free platform to share insights and knowledge. It was built using 𝗡𝗲𝘅𝘁.𝗷𝘀, 𝗧𝘆𝗽𝗲𝗦𝗰𝗿𝗶𝗽𝘁, 𝗠𝗼𝗻𝗴𝗼𝗗𝗕 it offers seamless performance, intuitive routing, and a user-friendly interface.
Does a similar job
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Second Brain2025 · second-brain-lac-ten.vercel.app · ▲281Hi 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.…
SECOND BRAIN 2.02023 · oussamaltrx21.gumroad.com · ▲111Get organized, get productive with Second Brain 2.0
Supreme Second Brain2023 · inotion.gumroad.com · ▲109The most aesthetic way to build a Second Brain with Notion
Second Brain Notion Template2023 · harshitjain374.gumroad.com · ▲74The simple & minimal life management system
Second Brain for AIMay 2026 · github.com · ▲286Persistent memory for Claude, ChatGPT & Cursor. Free.
A Traders Second Brain.2023 · albs.gumroad.com · ▲63Organise your life with this all in one dashbaord.
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Source: Product Hunt launch ↗
