AI · alternatives · 2026

24 alternatives to Second Brain

Your digital knowledge management system

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1
Second Brain▲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.…
2025 · second-brain-lac-ten.vercel.app · its alternatives →
2
Second Mind▲103
Organize your work & life and make progress on your goals
2023 · processized.gumroad.com · its alternatives →
3
SECOND BRAIN 2.0▲111
Get organized, get productive with Second Brain 2.0
2023 · oussamaltrx21.gumroad.com · its alternatives →
4
Notion Second Brain▲396
Organize your entire life with Notion
2023 · pathpages.com · its alternatives →
5
Second Brain Notion Template▲74
The simple & minimal life management system
2023 · harshitjain374.gumroad.com · its alternatives →
6
Findr: remember everything▲434
Unlock infinite digital memory with your (AI) second brain
2024 · usefindr.com · its alternatives →
7
Notion Ultimate Second Brain▲75
Capture & organize your knowledge in notion
2023 · saidbad.gumroad.com · its alternatives →
8
Second Brain ▲4
"Organize your life with Second Brain"
2024 · haroonnotion.gumroad.com · its alternatives →
9
Second Brain for AI▲286
Persistent memory for Claude, ChatGPT & Cursor. Free.
May 2026 · github.com · its alternatives →
10
Supreme Second Brain▲77
Taking notes was never easier than now
2022 · inotion.gumroad.com · its alternatives →
11
A Traders Second Brain.▲63
Organise your life with this all in one dashbaord.
2023 · albs.gumroad.com · its alternatives →
12
Second Brain for Engineering Managers▲79
Rethink your productivity and level up your management craft
2023 · eisabai.gumroad.com · its alternatives →
13
Notion Second Brain▲3
all your knowledge, projects, notes in one organized place.
2023 · easlo.gumroad.com · its alternatives →
14
Vortn▲164
Your Company's AI Second Brain
2025 · vortn.com · its alternatives →
15
Supreme Second Brain▲109
The most aesthetic way to build a Second Brain with Notion
2023 · inotion.gumroad.com · its alternatives →
16
myReach▲285
Your second brain, powered by AI – ChatGPT for your things
2023 · myreach.io · its alternatives →
17
Second Brain for Notion▲14
Transform Notion into your Second Brain
2024 · notionsecondbrain.com · its alternatives →
18
Notion Second Brain▲10
Second Brain – The Ultimate Productivity System
2025 · manalkilljoy.gumroad.com · its alternatives →
19
Second Brain Notion Template▲19
organization and project management
2024 · notionagence.com · its alternatives →
20
Your Second Brain, Built in Notion▲14
Capture ideas, manage tasks, and organize your life
2025 · its alternatives →
21
Chatable▲107
AI coaching models, the second brain of successful people
2023 · its alternatives →
22
Eve.▲112
AI powered second brain for Notion
2023 · notesbyhugh.gumroad.com · its alternatives →
23
Quivr - Second Brain▲150
A generative AI powered second brain
2023 · its alternatives →
24
Ultimate Second Brain▲33
Capture & organize everything in Notion.
2022 · notionsecondbrain.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →