Alternatives

Products that do what Second Brain by Hexact does

Your local AI knowledge base

1. 1
   Second Brain for AI▲286

   Persistent memory for Claude, ChatGPT & Cursor. Free.

   May 2026 · github.com

2. 2
   Second Brain▲302

   AI visual board and knowledge base

   2025

3. 3
   Findr: remember everything▲435

   Unlock infinite digital memory with your (AI) second brain

   2024

4. 4
   Second Brain for Mac and Windows▲247

   Your AI memory, everywhere you work

   Jul 2026 · thesecondbrain.dev

5. 5
   SECOND BRAIN 2.0▲111

   Get organized, get productive with Second Brain 2.0

   2023

6. 6
   Notion Second Brain▲405

   Organize your entire life with Notion

   2023

7. 7
   Claude Computer Use▲630

   Enable Claude to use your computer to complete tasks

   Mar 2026 · claude.com

8. 8
   Smart Notes by MindPal▲146

   The working memory for your AI second brain

   2023

9. 9
   Claude for Desktop▲507

   Desktop AI partner designed for fast, focused, deep work

   2024

10. 10
    TwinMind: AI Second Brain for Mobile▲228

    Remember meetings, lectures, or your entire life for free

    2025

11. 11
    Brain² by ClickUp▲204

    One AI that knows your entire company and acts on it

    Jun 2026 · clickup.com

12. 12
    Layer ▲1,002

    Brain-Inspired planner

    2024

13. 13
    myReach▲285

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

    2023

14. 14IB
    I built my own second brain software tool▲41

    2021 · joeldare.com

15. 15
    Claude Memory▲333

    Bringing memory to teams at work

    Sep 2025

16. 16
    AI Notebook App▲396

    AI-powered second brain🧠

    2024

17. 17
    minimi▲497

    Your ambient memory for Claude

    Jun 2026 · projectminimi.com

18. 18
    Mem 2.0▲312

    Stop losing ideas with AI that recalls for you

    Oct 2025

19. 19
    remio 2.0▲509

    Captures your work to build a searchable knowledge base

    Jan 2026

20. 20
    2-b.ai▲421

    Todoist meets ChatGPT inside your browser

    Jan 2026

21. 21
    MindPal▲336

    Dump all your files and chat with them, a real second brain

    2023

22. 22
    Supreme Second Brain▲77

    Taking notes was never easier than now

    2022

23. 23
    Novi Notes▲107

    Your notes become AI memory. Local-only, no subscription.

    Mar 2026

24. 24
    PMB▲211

    Stop re-explaining your project to AI coding agents

    Jun 2026 · pmbai.dev

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