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Best Outline Alternatives in 2026

12 apps from knowledge base software ranked against Outline on the same published basis.

  1. 1
    Confluence Free plan AndroidiOSself-hostedWeb $5.42/mo9.7
    Outline vs Confluence
  2. 2
    ProProfs Knowledge Base Free plan AndroidapiextensioniOSWeb $0.99/mo9.7
    Outline vs ProProfs Knowledge Base
  3. 3
    Nuclino Free plan AndroidapiiOSLinuxMac Free9.5
    Outline vs Nuclino
  4. 4
    Zoho Learn Free plan WebiOSAndroid Free9.4
    Outline vs Zoho Learn
  5. 5
    Elium Free trial AndroidapiextensioniOSself-hosted €15/mo8.5
    Outline vs Elium
  6. 6
    Slite Free trial AndroidapiextensioniOSMac $0.83/mo8.5
    Outline vs Slite
  7. 7
    Hudu Free trial AndroidapiextensioniOSself-hosted 8.5
    Outline vs Hudu
  8. 8
    TheHelpFlow WebiOSAndroid $29/mo8.4
    Outline vs TheHelpFlow
  9. 10
    IT Glue AndroidapiextensioniOSWeb $29/mo8.4
    Outline vs IT Glue
  10. 11
    Notejoy Free plan AndroidiOSMacWebWin $5/mo8.4
    Outline vs Notejoy
  11. 12
    Papyrs Free plan AndroidapiiOSLinuxMac 8.4
    Outline vs Papyrs
  12. 13
    BlueSpice Free plan self-hosted €4.50/mo8.2
    Outline vs BlueSpice
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