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Best Personal Knowledge Management Software in 2026

Personal knowledge management software gives you different approaches to organizing notes, references, and connections between ideas. Compare organization models and graph views to understand how material is structured, and consider backlinks as another way to assess relationships among notes. Offline access and supported platforms can shape where you work with your knowledge; import and export matter when moving material between tools. Free plans and paid-from pricing add access context. Logseq, Obsidian, and SiYuan are among the options shown. Consider which structure fits your habits and where you need your notes to be available.

  1. 1

    Notesium

    Free plan Open source APILinuxMac+2

    Notesium brings linked Markdown notes, full-text search, and a relationship graph together in a free tool. Its API caveats matter if you plan to build on API-based workflows.

    9.0 Free plan Visit site
  2. 2

    Anytype

    by Anytype
    Free plan AndroidExtensioniPhone+3

    Anytype combines structured editing, databases, offline use, and device-focused privacy.

    7.7 Free plan Visit site
  3. 3

    Capacities

    by Capacities
    Free plan AndroidiPhoneLinux+3

    Capacities combines note-taking with offline access, sharing, and integrations across multiple platforms. The free plan has a defined media allowance, while Pro costs $9.99 a month.

    7.7 Free plan · paid from $9.99/mo Visit site
  4. 4

    Foam

    Free plan APIExtensionLinux+3

    Choose Foam if you want a free, open-source system for linked Markdown research notes, especially within Visual Studio Code.

    7.6 Free plan Visit site
  5. 5

    Heptabase

    Free plan AndroidiPhoneLinux+3

    Heptabase combines visual knowledge tools with source-based AI and offline desktop access. Review the free-plan exclusions and the limits on editing after a trial or subscription ends.

    7.6 Free plan · paid from $8.99/user/mo (annual) · 7-day trial Visit site
  6. 6

    Lattics

    by Lattics
    Free plan iPhoneMacWeb+1

    Lattics brings research notes, visual planning, academic writing and PDF tools together. Its free plan has usage limits, while prices for the listed Pro plans are not provided.

    7.5 Free plan Visit site
  7. 7

    Logseq

    Free plan AndroidiPhoneLinux+3

    Logseq combines local note-taking, knowledge links, tasks, and PDF annotation across a broad set of platforms.

    7.5 Free plan Visit site
  8. 8

    Mem Agent

    Free plan APIExtensioniPhone+3

    Mem combines workspace search, note tools, voice capture, and several integrations. Review its monthly activity allowances and AI-processing privacy details before choosing a plan.

    7.5 Free plan · paid from $9/mo Visit site
  9. 9

    Neoma

    Free plan iPhoneLinuxMac+2

    Neoma combines local Markdown notes with offline use, search, link graphs, and static-site publishing.

    7.4 Free plan · paid from 22 AUD/user/mo Visit site
  10. 10

    NotesGraph

    Free plan AndroidExtensioniPhone+2

    NotesGraph brings graph-based notes together with planning views, imports, exports, and optional sync.

    7.4 Free plan Visit site
  11. 11

    Obsidian

    by Obsidian
    Free plan AndroidExtensioniPhone+3

    Obsidian's free local app is suited to offline note-taking, with plugins and Canvas for shaping a personal workflow.

    7.3 Free plan · paid from $4/user/mo (annual) Visit site
  12. 12

    Reflect

    by Reflect
    Free plan ExtensioniPhoneMac+1

    Choose Reflect if you want linked notes stored as Markdown files you control, with optional on-device semantic search and syncing through iCloud Drive or Git.

    7.3 From $10/user/mo (annual) · 14-day trial Visit site
  13. 13

    Memex

    Free plan iPhoneMac

    Memex combines an offline library with source-linked notes and optional study tools. Check Mac compatibility and whether the free library or paid study features better fit your needs.

    7.2 Free plan · 7-day trial Visit site
  14. 14

    Org-roam

    Free plan LinuxMacSelf-hosted

    Org-roam offers linked plain-text notes, offline access, backlinks, graph visualization, and citation support at no charge.

    7.2 Free plan Visit site
  15. 15

    SilverBullet

    Free plan AndroidiPhoneLinux+4

    SilverBullet combines Markdown-based writing and knowledge links with offline use and collaboration.

    7.2 Open source Visit site
  16. 16

    Khybur

    Free plan Web

    Khybur combines linked-note exploration with task and planning features in a browser-based workspace. The Free plan is limited to 50 notes, while the Annual plan adds unlimited notes and folders.

    7.1 Free plan · paid from $2.99/mo (annual) Visit site
  17. 17

    SiYuan

    Free plan AndroidExtensioniPhone+5

    SiYuan combines structured notes, knowledge links, databases, and spaced repetition, with local and self-hosted options.

    7.1 Free plan · paid from $64 Visit site
  18. 18

    Supernotes

    by Supernotes
    Free plan AndroidAPIExtension+5

    Supernotes centers note organization on linked digital cards, with offline access, collaboration, and multiple import and export options.

    7.1 Free plan · paid from £6/mo Visit site
  19. 19

    Tana

    Free plan LinuxMacWeb+1

    Tana combines call capture with proposed follow-up work that people can review before it is applied. Check its free-plan limits and the lack of listed mobile apps against your workflow.

    7.1 Free plan · paid from $30/user/mo · 30-day trial Visit site
  20. 20

    TheBrain

    Free plan AndroidAPIiPhone+4

    TheBrain offers a visual way to connect information, with local use, multiple views, and optional AI. The free app permits unlimited thoughts, but its cloud sync and attachment allowances are limited.

    7.1 Free plan · paid from $15/mo Visit site
  21. 21

    Continuum

    Free plan

    Continuum centers note-taking on links, backlinks, and resurfacing forgotten material. Its free plan, Markdown import, and public code make it suitable for linked-thinking workflows.

    7.0 Free plan Visit site
  22. 22

    TiddlyWiki

    by TiddlyWiki
    Free plan AndroidiPhoneLinux+4

    TiddlyWiki offers a flexible structure for connected information, with browser-based and server-based ways to run it.

    7.0 Free plan Visit site
  23. 23

    TriliumNext Notes

    Free plan APIExtensionLinux+4

    Pick TriliumNext Notes if you want a free, open-source personal knowledge base with varied note formats, collections and flexible organization.

    7.0 Free plan Visit site
  24. 24

    RemNote

    by RemNote
    Free plan AndroidiPhone

    RemNote brings note-taking, document annotation, and review tools together, with offline access and mobile apps.

    6.9 Free plan · paid from $8/mo Visit site
  25. 25

    Zettlr

    by Zettlr
    Free plan LinuxMacWindows

    Zettlr combines Markdown writing, citation support, linked notes, and publication-oriented exports in a free desktop app.

    6.8 Free plan Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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